Oracle Database Error Messages (ORA-15000 - ORA-19000)


I summarized a list of (ORA) oracle error codes list with cause and action, use browser find (CTRL+F) to get your desire error code, cause and possible action.

Oracle Database Error Messages (ORA-15000 - ORA-19000)



ORA-15001: diskgroup "string" does not exist or is not mounted
Cause: An operation failed because the diskgroup specified does not exist or is not mounted by the current ASM instance.
Action: Verify that the diskgroup name used is valid, that the diskgroup exists, and that the diskgroup is mounted by the current ASM instance.

ORA-15002: parameter LOCK_NAME_SPACE exceeds limit of string characters
Cause: The LOCK_NAME_SPACE initialization parameter contained a value that is too long.
Action: Correct the LOCK_NAME_SPACE initialization parameter.

ORA-15003: diskgroup "string" already mounted in another lock name space
Cause: The diskgroup could not be mounted by the ASM instance because it was operating in a lockspace different than another existing ASM instance which had already mounted the diskgroup.
Action: Check the LOCK_NAME_SPACE initialization parameter value, or dismount the diskgroup from the other ASM instances.

ORA-15004: alias "string" does not exist
Cause: The specified alias did not exist within the diskgroup.
Action: Check the alias name and diskgroup name.

ORA-15005: name "string" is already used by an existing alias
Cause: An existing alias in the diskgroup used the same name.
Action: Select another alias name, or drop the existing alias.

ORA-15006: template "string" does not exist
Cause: The specified template did not exist within the diskgroup.
Action: Check the template name and diskgroup name.

ORA-15007: name is already used by an existing template
Cause: A template with the same name already exists.
Action: Select another template name, or drop the existing template.

ORA-15008: cannot drop system template
Cause: The specified template was created by the system and must always exist for proper operation.
Action: Select another template name.

ORA-15009: ASM disk "string" does not exist
Cause: The specified ASM disk was not found.
Action: Check the ASM disk name.

ORA-15010: name 'string' is already used by an existing ASM disk
Cause: The specified name was already used in this diskgroup.
Action: Specify a different ASM disk name.

ORA-15011: failure group "string" does not exist in diskgroup "string"
Cause: The specified name did not match the failure group of any disks in the diskgroup. This usually indicates that the failure group name was specified incorrectly.
Action: Check the failure group name.

ORA-15012: ASM file 'string' does not exist
Cause: The ASM file was not found.
Action: Check the ASM file name.

ORA-15013: diskgroup "string" is already mounted
Cause: An ALTER DISKGROUP MOUNT command specified the name of a diskgroup which is already mounted by the current ASM instance.
Action: Check the name of the diskgroup.

ORA-15014: path 'string' is not in the discovery set
Cause: The operating system path specified was outside the set of disks that are discovered by the instance.
Action: Specify a operating system path within the set of disks that are discovered based upon the ASM_DISKSTRING parameter. Alternatively, check the setting of the ASM_DISKSTRING parameter.

ORA-15015: Specified path 'string' conflicts with path 'string'
Cause: The ASM instance previously discovered specified disk with an ASM library using a different path.
Action: Use the discovery string of the ASM library to add the disk.

ORA-15016: inconsistent respecification of path 'string'
Cause: The specified path was provided more than once with different properties.
Action: Do not provide a path more than once. Alternatively, provide consistent properties.

ORA-15017: diskgroup "string" cannot be mounted
Cause: The specified diskgroup could not be mounted.
Action: Check for additional errors reported.

ORA-15018: diskgroup cannot be created
Cause: The specified diskgroup could not be created.
Action: Check for additional errors reported.

ORA-15019: discovered duplicate path 'string' for 'string'
Cause: The discovery encountered multiple paths to the same disk.
Action: Check that the ASM_DISKSTRING parameter specifies only a single path for each disk.

ORA-15020: discovered duplicate ASM disk "string"
Cause: The discovery encountered two disks claiming to be the same named ASM disk.
Action: Check that the ASM_DISKSTRING parameter specifies only a single path for each disk.

ORA-15021: parameter "string" is not valid in string instance
Cause: The specified parameter was not supported when starting an instance of this type.
Action: Delete the specified parameter from the INIT.ORA file.

ORA-15023: reached maximum allowable number of disks string
Cause: An attempt was made to add another disk to a diskgroup which already contains the maximum number of disks allowed.
Action: Consider dropping existing disks from the diskgroup before adding additional ones, or create a new diskgroup.

ORA-15024: discovered duplicately numbered ASM disk string
Cause: The discovery encountered two disks claiming to have the same ASM disk number.
Action: Check that the ASM_DISKSTRING parameter specifies only a single path for each disk.

ORA-15025: could not open disk 'string'
Cause: The specified disk could not be opened.
Action: Check the additional error messages, if any.

ORA-15026: disk 'string' is not an ASM disk
Cause: The disk did not contain a valid ASM disk header.
Action: Check to see if the data on the disk has been changed by some system administrator action.

ORA-15027: active use of diskgroup "string" precludes its dismount
Cause: An ALTER DISKGROUP ... DISMOUNT command specified a diskgroup which had database client instances with open files in the diskgroup. Diskgroups cannot be dismounted until all open files in the diskgroup are closed by the database client instances.
Action: Stop all clients that are using this diskgroup and retry the ALTER DISKGROUP ... DISMOUNT command. The V$ASM_CLIENT fixed view in an ASM instance provides a list of its active database client instances.

ORA-15028: ASM file 'string' not dropped; currently being accessed
Cause: An attempt was made to drop an ASM file, but the file was being accessed by one or more database instances and therefore could not be dropped.
Action: Shut down all database instances that might be accessing this file and then retry the drop command.

ORA-15029: disk 'string' is already mounted by this instance
Cause: An attempt was made to add to a diskgroup a disk that was already mounted by the current instance as part of some (possibly other) diskgroup.
Action: Specify a different disk in the command. Note that not even the FORCE option can be used to correct the situation until the diskgroup containing the disk becomes dismounted by this instance.

ORA-15030: diskgroup name "string" is in use by another diskgroup
Cause: A CREATE DISKGROUP command specfied a diskgroup name that was already assigned to another diskgroup.
Action: Select a different name for the diskgroup.

ORA-15031: disk specification 'string' matches no disks
Cause: The device specification string to a CREATE DISKGROUP command did not match any devices which could be discovered.
Action: Check the device specification string matches a disk on the system.

ORA-15032: not all alterations performed
Cause: At least one ALTER DISKGROUP action failed.
Action: Check the other messages issued along with this summary error.

ORA-15033: disk 'string' belongs to diskgroup "string"
Cause: An attempt was made to ADD to a diskgroup a disk that was already part of another diskgroup, or an attempt was made to DROP / OFFLINE / ONLINE / CHECK a disk that was not part of the specified diskgroup.
Action: For ADD, check the path specifier for the disk. If it is certain that the disk is not in use by another diskgroup, the FORCE option may be used to override this check. For the other commands, check the name of the specified disk.

ORA-15034: disk 'string' does not require the FORCE option
Cause: An attempt was made to add the disk to the diskgroup using the FORCE option. The disk was not found to be in use at the present time, so the FORCE option was not permitted.
Action: Avoid gratuitous use of the FORCE option.

ORA-15035: no disks belong to diskgroup "string"
Cause: An attempt was made to mount a diskgroup for which no member disks were discovered.
Action: Specify a valid diskgroup name that contains disks.

ORA-15036: disk 'string' is truncated
Cause: The size of the disk, as reported by the operating system, was smaller than the size of the disk as recorded in the disk header block on the disk.
Action: Check if the system configuration has changed.

ORA-15037: disk 'string' is smaller than mimimum of string MBs
Cause: The size of the disk, as reported by the operating system, was too small to allow the disk to become part of the diskgroup.
Action: Check if the system configuration is correct.

ORA-15038: disk 'string' size mismatch with diskgroup [string] [string] [string]
Cause: An attempt was made to mount into a diskgroup a disk whose recorded allocation unit size, metadata block size, or physical sector size was inconsistent with the other diskgroup members.
Action: Check if the system configuration has changed.

ORA-15039: diskgroup not dropped
Cause: An attempt to drop a diskgroup failed.
Action: See the associated messages for details about why the drop was not successful.

ORA-15040: diskgroup is incomplete
Cause: Some of the disks comprising a diskgroup were not present.
Action: Check the hardware to ensure that all disks are functional. Also check that the setting of the ASM_DISKSTRING initialization parameter has not changed. Alternatively, for normal or high redundancy diskgroups, use MOUNT FORCE to offline missing disks as part of mounting the diskgroup.

ORA-15041: diskgroup space exhausted
Cause: The diskgroup ran out of space.
Action: Add more disks to the diskgroup, or delete some existing files.

ORA-15042: ASM disk "string" is missing
Cause: The specified disk, which is a necessary part of a diskgroup, could not be found on the system.
Action: Check the hardware configuration.

ORA-15043: ASM disk "string" is not a diskgroup member
Cause: The specified disk has been removed from the diskgroup, but a disk matching its name was found.
Action: Check the hardware configuration.

ORA-15044: ASM disk 'string' is incorrectly named
Cause: Either the specified disk had its contents changed such that it no longer contained an ASM disk name in its header that matches the diskgroup information or its FAILGROUP information may have become inconsistent.
Action: Drop the disk from the diskgroup.

ORA-15045: ASM file name 'string' is not in reference form
Cause: The ASM file name was not in a form that can be used to reference an existing file because a file/incarnation number or an alias name was not present or a template name was included.
Action: Correct the specified ASM file name.

ORA-15046: ASM file name 'string' is not in single-file creation form
Cause: The ASM file name was not in a form that can be used to create an single file because a file/incarnation number was present.
Action: Correct the specified ASM file name.

ORA-15047: ASM file name 'string' is not in multiple-file creation form
Cause: The ASM file name was not in a form that can be used to create multiple files because either a fully-qualified file name or an alias name was present.
Action: Correct the specified ASM file name.

ORA-15048: ASM internal files cannot be deleted
Cause: An attempt was made to delete a metadata file used by ASM to manage the diskgroup.
Action: Check the specified ASM file name.

ORA-15049: diskgroup "string" contains string error(s)
Cause: Errors were discovered by the ALTER DISKGROUP CHECK command.
Action: See the alert log for details of the errors.

ORA-15050: disk "string" contains string error(s)
Cause: Errors were discovered by the ALTER DISKGROUP CHECK DISK command.
Action: See the alert log for details of the errors.

ORA-15051: file 'string' contains string error(s)
Cause: Errors were discovered by the ALTER DISKGROUP CHECK FILE command.
Action: See the alert log for details of the errors.

ORA-15052: ASM file name 'string' is not in diskgroup "string"
Cause: The ASM file name did not contain a diskgroup name that specified the correct diskgroup as implied by the other arguments to the command.
Action: Correct the specified ASM file name or diskgroup name.

ORA-15053: diskgroup "string" contains existing files
Cause: An attempt was made to drop a diskgroup that still contains existing files.
Action: Specify the INCLUDING CONTENTS option to drop the diskgroup and all of its existing files.

ORA-15054: disk "string" does not exist in diskgroup "string"
Cause: An attempt was made to DROP (or CHECK) a disk that is not part of the specified diskgroup.
Action: Check the name of the specified disk and the specified diskgroup.

ORA-15055: unable to connect to ASM instance
Cause: The RDBMS instance was unable to connect to the required ASM instance when accessing a disk group.
Action: Check the additional error messages. May need to configure correct ASM sid or make sure the RDBMS instance has OS privileges for ASM SYSDBA.

ORA-15056: additional error message
Cause: An operating system error occured.
Action: Correct the operating system error and retry the operation.

ORA-15057: specified size of string MB is larger than actual size of string MB
Cause: A disk size expression exceeded the amount of storage actually availalable, as reported by the operating system.
Action: Specify a valid size.

ORA-15058: disk 'string' belongs to an incompatible diskgroup
Cause: An attempt was made to ADD to a diskgroup a disk which was already part of another diskgroup. The other diskgroup was written by a more recent software release.
Action: Check the path specifier for the disk. If it is certain that the disk is not in use by another diskgroup, the FORCE option may be used to override this check.

ORA-15059: invalid device type for ASM disk
Cause: The device type of the discovered disk was not valid for use as an ASM disk.
Action: Check the file path and retry or exclude it from the discovery set. See the accompanying operating system error for additional information.

ORA-15060: template "string" does not exist
Cause: A command specified a template name, either directly or as part of an ASM file name, which did not exist.
Action: Check the template specifier in the command.

ORA-15061: ASM operation not supported [string]
Cause: An ASM operation was attempted that is invalid or not supported by this version of the ASM instance.
Action: This is an internal error code that is used for maintaining compatibility between software versions and should never be visible to the user; contact Oracle support Services.

ORA-15062: ASM disk is globally closed
Cause: The disk to which the I/O request was issued has gone offline or has been globally closed by the background process. Check other messages in the trace files for more information.
Action: Bring the disk online for I/Os to get through.

ORA-15063: ASM discovered an insufficient number of disks for diskgroup "string"
Cause: ASM was unable to find a sufficient number of disks belonging to the diskgroup to continue the operation.
Action: Check that the disks in the diskgroup are present and functioning, that the owner of the ORACLE binary has read/write permission to the disks, and that the ASM_DISKSTRING initialization parameter has been set correctly. Verify that ASM discovers the appropriate disks by querying V$ASM_DISK from the ASM instance.

ORA-15064: communication failure with ASM instance
Cause: There was a failure to communicate with the ASM instance, most likely because the connection went down.
Action: Check the accompanying error messages for more information on the reason for the failure. Note that database instances will always return this error when the ASM instance is terminated abnormally.

ORA-15065: hash collision for diskgroup names 'string' and 'string'
Cause: There was a collision in the group name used for the diskgroup. The diskgroup(s) cannot be mounted using colliding names.
Action: Use a different diskgroup name and also report to Oracle Support Services the two diskgroup names which collided.

ORA-15066: offlining disk "string" may result in a data loss
Cause: Following I/O failures, the disks holding all copies of a data block were attempted to be taken offline.
Action: Check the accompanying error messages for more information on the reason for the disk I/O failures.

ORA-15067: command or option incompatible with diskgroup redundancy
Cause: An attempt was made to use a feature which is not permitted by the diskgroup's redundancy policy. Common examples are forcibly dropping a disk from an EXTERNAL REDUNDANCY diskgroup, using the FAILGROUP clauses with an EXTERNAL REDUNDANCY diskgroup, or using invalid template attributes.
Action: Omit the option from the command.

ORA-15068: maximum number of diskgroups string already mounted
Cause: An attempt was made to mount more diskgroups than the instance is capable of mounting at one time.
Action: Dismount a mounted diskgroup and retry the command.

ORA-15069: ASM file 'string' not accessible; timed out waiting for lock
Cause: An attempt was made to access an ASM file, but the file is currently being created, resized, or deleted and therefore cannot be accessed.
Action: No action required, or try again later, after the create or resize has completed.

ORA-15070: maximum number of files string exceeded in diskgroup "string"
Cause: The diskgroup ran out of space.
Action: Delete some existing ASM files or create files in a new diskgroup.

ORA-15071: ASM disk "string" is already being dropped
Cause: An attempt was made to drop a disk from a diskgroup that was already in the process of being dropped from the diskgroup. Alternatively, an attempt was made to forcibly drop a disk from a diskgroup using the FORCE option that was already being forcibly dropped from the diskgroup.
Action: Check the ASM disk name and FORCE option as specified in the command.

ORA-15072: command requires at least string failure groups, discovered only string
Cause: An attempt was made to create either a normal redundancy diskgroup for which fewer than two failure groups were both specified and discovered, or a high redundancy diskgroup for which fewer than three failure groups were both specified and discovered.
Action: Check the that the command does specify the required number of failure groups, and that all of the specified disks are discovered by ASM. A query of the V$ASM_DISK fixed view will show which disks are discovered by ASM.

ORA-15073: diskgroup string is mounted by another ASM instance
Cause: An attempt was made to drop a diskgroup that is still mounted somewhere in the cluster by another instance.
Action: dismount the diskgroup from all nodes except the one performing the drop diskgroup command.

ORA-15074: diskgroup string requires rebalance completion
Cause: An attempt was made to repeatedly add or drop disks from a diskgroup. ASM could not perform the operation given the current state of the diskgroup.
Action: Manually invoke the ALTER DISKGROUP REBALANCE command and allow the rebalance to run to completion. Alternatively, invoke the ALTER DISKGROUP UNDROP DISKS command and allow the rebalance to run to completion. After the rebalance has completed, retry the operation.

ORA-15075: disk(s) are not visible cluster-wide
Cause: An ALTER DISKGROUP ADD DISK command specified a disk that could not be discovered by one or more nodes in a RAC cluster configuration.
Action: Determine which disks are causing the problem from the GV$ASM_DISK fixed view. Check operating system permissions for the device and the storage sub-system configuration on each node in a RAC cluster that cannot identify the disk.

ORA-15076: Emulating I/O errors on the OSM disk
Cause: The disk to which the I/O request was issued is in an error emulation mode.
Action: Bring the disk online for I/Os to get through.

ORA-15077: could not locate ASM instance serving a required diskgroup
Cause: The instance failed to perform the specified operation because it could not locate a required ASM instance.
Action: Start an ASM instance and mount the required diskgroup.

ORA-15078: ASM diskgroup was forcibly dismounted
Cause: The diskgroup to which the I/O request was issued was forcibly dismounted (with the ALTER DISKGROUP DISMOUNT FORCE command) so that it could not be accessed.
Action: Mount the diskgroup to allow access again.

ORA-15079: ASM file is closed
Cause: The file to which the I/O request was issued was closed. This could have been a consequence of the diskgroup being dismounted.
Action: Make sure the diskgroup is mounted and the file is open.

ORA-15080: synchronous I/O operation to a disk failed
Cause: A synchronous I/O operation invoked on a disk has failed.
Action: Make sure that all the disks are operational.

ORA-15081: failed to submit an I/O operation to a disk
Cause: A submission of an I/O operation to a disk has failed.
Action: Make sure that all the disks are operational.

ORA-15082: ASM failed to communicate with database instance
Cause: There was a failure when ASM tried to communicate with a database instance (most likely because the connection went down).
Action: Check the accompanying error messages for more information on the reason for the failure. Note that the ASM instances may return this error when a database instance is terminated abnormally.

ORA-15083: failed to communicate with ASMB background process
Cause: A database instance failed to communicate with its ASMB background process when attempting to access an ASM file.
Action: Check the alert log for more information on the reason for the failure.

ORA-15084: ASM disk "string" is offline and cannot be dropped.
Cause: An attempt was made to drop a disk that is offline.
Action: Check the ASM disk name as specified in the command; or, if needed, use the DROP DISK FORCE option.

ORA-15090: handle string is not a valid descriptor
Cause: The file handle was not valid in this session.
Action: Submit a handle obtained from a successful call to DBMS_DISKGROUP.OPEN().

ORA-15091: operation incompatible with open handle in this session
Cause: The current session contained an open handle from the DBMS_DISKGROUP PL/SQL package which precluded performing the command.
Action: Close the hanlde with DBMS_DISKGROUP.CLOSE() before executing the command, or execute the command in a different session.

ORA-15092: I/O request size string is not a multiple of logical block size string
Cause: The length of the request was not a multiple of logical block size.
Action: Correct the error and retry the operation.

ORA-15093: buffer only contains string bytes, I/O requested is string bytes
Cause: The buffer supplied for write was too small to satisfy the request.
Action: Correct the error and retry the operation.

ORA-15094: attempted to write to file opened in read only mode
Cause: The file handle passed to DBMS_DISKGROUP.WRITE() did not have write privileges.
Action: Obtain a file handle in read-write mode and retry the write operation.

ORA-15095: reached maximum ASM file size (string GB)
Cause: An ASM file creation or file resize operation exceeded the maximum file size permitted by ASM.
Action: Use smaller files.

ORA-15096: lost disk write detected
Cause: A failure either by disk hardware or disk software caused a disk write to to be lost, even though ASM received acknowledgement that the write completed. Alternatively, a clustering hardware failure or a clustering software failure resulted in an ASM instance believing that another ASM instance had crashed, when in fact it was still active.
Action: The disk group is corrupt and cannot be recovered. The disk group must be recreated, and its contents restored from backups.

ORA-15097: cannot SHUTDOWN ASM instance with connected RDBMS instance
Cause: A SHUTDOWN command was issued to an ASM instance that had one or more connected RDBMS instances.
Action: Connect to each RDBMS instance and shut it down, and then reissue the SHUTDOWN command to the ASM instance. Alternatively, use the SHUTDOWN ABORT command. Note that issuing the SHUTDOWN ABORT command to an ASM instance results in abormal termination of all RDBMS instances connected to that ASM instance.

ORA-15098: file type not recognized by ASM instance
Cause: An attempt was made by DB instance to create a file for a file type that is not recognized by current version of ASM instance.
Action: Upgrade ASM to higher version that recognizes this file type.

ORA-15099: disk 'string' is larger than maximum size of string MBs
Cause: The specified size of the disk was too big to allow the disk to become part of the diskgroup.
Action: Specify a smaller disk size than the maximum allowed size.

ORA-15100: invalid or missing diskgroup name
Cause: The command did not specify a valid diskgroup name.
Action: Specify a valid diskgroup name.

ORA-15101: no action specified
Cause: The ALTER DISKGROUP command did not specify any alterations.
Action: Specify at least one operation clause.

ORA-15102: invalid POWER expression
Cause: The syntax of the POWER expression was invalid.
Action: Specify a valid POWER expression.

ORA-15103: conflicting or duplicate REPAIR options
Cause: The command specified conflicting or duplicate REPAIR keywords.
Action: Specify only one REPAIR action.

ORA-15104: conflicting CONTENTS options
Cause: The command specified conflicting or duplicate INCLUDING CONTENTS or EXCLUDING CONTENTS options.
Action: Specify only one option.

ORA-15105: missing or invalid FAILGROUP name
Cause: The command did not specify a valid failure group name.
Action: Specify a valid failure group name.

ORA-15106: missing or invalid operating system disk locator string
Cause: The command did not specify a valid operating system path for the device as a string.
Action: Specify a valid operating system path for the device.

ORA-15107: missing or invalid ASM disk name
Cause: The command did not specify a valid ASM disk name identifier.
Action: Specify a valid ASM disk name identifier.

ORA-15108: missing or invalid template name
Cause: The command did not specify a valid template name identifier.
Action: Specify a valid template name identifier.

ORA-15109: conflicting protection attributes specified
Cause: The command contained an invalid combination of the UNPROTECTED, MIRROR, or PARITY keywords.
Action: Specify only one keyword.

ORA-15110: no diskgroups mounted
Cause: No diskgroups were specified in the ASM_DISKGROUPS parameter, so instance startup or the ALTER DISKGROUP ALL MOUNT command did not mount any diskgroups.
Action: Specify valid diskgroups in the ASM_DISKGROUPS parameter or ignore the error.

ORA-15111: conflicting or duplicate STRIPE options
Cause: The command contained both a FINE and COARSE keyword, or contained the FINE keyword more than once, or contained the COARSE keyword more than once.
Action: Specify only one keyword.

ORA-15112: no diskgroups currently mounted
Cause: An ALTER DISKGROUP ALL command did not find any mounted diskgroups upon which to operate. Either instance shutdown or an ALTER DISKGROUP ALL DISMOUNT command did not dismount any diskgroups, or an ALTER DISKGROUP ALL UNDROP DISKS command did not undrop any disks.
Action: Mount the diskgroups on which you wish to operate or ignore the error.

ORA-15113: alias name 'string' refers to a directory
Cause: The name specified referred to a directory in the alias directory and not a valid alias entry.
Action: Check the alias name and retry.

ORA-15114: missing or invalid ASM file name
Cause: The command did not specify a valid ASM file name identifier.
Action: Specify a valid ASM file name identifier.

ORA-15115: missing or invalid ASM disk size specifier
Cause: The command did not specify a valid ASM disk size.
Action: Specify a valid ASM disk size.

ORA-15116: invalid combination of ALTER DISKGROUP options
Cause: The ALTER DISKGROUP options may not be combined in this manner.
Action: Issue separate ALTER DISKGROUP commands to accomplish the desired action.

ORA-15117: command only operates on one diskgroup
Cause: An ALTER DISKGROUP, CREATE DISKGROUP, or DROP DISKGROUP command specified a list of diskgroups or the keyword ALL in a context where only a single diskgroup was permitted.
Action: Issue separate ALTER DISKGROUP, CREATE DISKGROUP, or DROP DISKGROUP commands to accomplish the desired action.

ORA-15120: ASM file name 'string' does not begin with the ASM prefix character
Cause: A file name was specified to ASM which did not begin with the ASM prefix character (currently '+'). ASM uses the prefix to determine that a file specification is in fact an ASM file.
Action: Correct the file name specification.

ORA-15121: ASM file name 'string' contains an invalid diskgroup name
Cause: A file name was specified that did not contain a valid diskgroup name. The diskgroup name follows immediately after the ASM prefix character. It must start with an alphabetic character, and consist of up to 30 characters which are alphabetic, numeric, or the characters '$' and '_'.
Action: Correct the file name specification.

ORA-15122: ASM file name 'string' contains an invalid file number
Cause: A numeric file name was specified which did not contain a valid ASM file number. The ASM file number follows immediately after the diskgroup name. It must be preceeded by a '.' character, and contain only numeric characters.
Action: Correct the file name specification.

ORA-15123: ASM file name 'string' contains an invalid incarnation number
Cause: A numeric file name was specified which did not contain a valid ASM incarnation number. The ASM incarnation number follows immediately after the ASM file number. It must be preceeded by a '.' character, and contain only numeric characters.
Action: Correct the file name specification.

ORA-15124: ASM file name 'string' contains an invalid alias name
Cause: A file name was specified which did not contain a valid ASM alias name. The ASM alias name, if present, follows immediately after the diskgroup name, in place of the ASM file number. It must be preceeded by a slash, start with an alphabetic character, and consist of up to 48 characters which are alphabetic, numeric, or the characters '$', '_', '-', or '#". A space can separate two parts of an alias name.
Action: Correct the file name specification.

ORA-15125: ASM file name 'string' contains an invalid template name
Cause: A file name was specified to ASM which did not contain a valid template name. The template name, if present, follows immediately after the ASM incarnation number or the ASM alias name, if such is used in place of the ASM file number. It must be enclosed in parenthesis, start with an alphabetic character, and consist of up to 30 characters which are alphabetic, numeric, or the characters '$' and '_'.
Action: Correct the file name specification.

ORA-15126: component within ASM file name 'string' exceeds maximum length
Cause: The maximum identifier length of 30 characters was exceeded for the diskgroup name, template name, or alias name field within the ASM file name.
Action: Correct the file name specification.

ORA-15127: ASM file name 'string' cannot use templates
Cause: A fully qualified ASM file name was specified. Such a specification does not permit the inclusion of a template name in the ASM file name.
Action: Correct the file name specification.

ORA-15128: ASM file name 'string' exceeds maximum length string
Cause: The maximum ASM file name length of 256 characters was exceeded for the combination of diskgroup name, file number, template name, alias name plus punctuation within the ASM file name.
Action: Correct the file name specification.

ORA-15129: entry 'string' does not refer to a valid directory
Cause: The entry indicated did not refer to a directory. Attempt was made to access the contents of this directory.
Action: Correct the error and try again.

ORA-15130: diskgroup "string" is being dismounted
Cause: The diskgroup is being dismounted by request or because an I/O error was encountered that could not be handled by taking the disks offline. A disk cannot be offlined whenever doing so could result in all copies of a redundant extent being unavailable.
Action: Repair the hardware problem and re-mount the diskgroup. Refer to the alert log to determine which disks have failed.

ORA-15131: block string of file string in diskgroup string could not be read
Cause: A block could not be read because the disk containing the block is either offline or an I/O error occured while reading the block. If this is mirrored file, then all disks that contain a copy of the block are either offline or received errors.
Action: Repair the affected disk and bring it back online. Refer to accompanying error messages to determine which disk has failed.

ORA-15132: block string of file string in diskgroup string could not be written
Cause: A block could not be written because the disk containing the block is either offline or an I/O error occured while writing the block. If this is mirrored file, then insufficient disks which contain a copy of the block are either offline or received errors.
Action: Repair the affected disk and bring it back online. Refer to accompanying error messages to determine which disk has failed.

ORA-15133: instance recovery required for diskgroup string
Cause: An instance in the cluster crashed making instance recovery necessary.
Action: None. This error should not normally be seen by an ASM client. ASM will trap this error and retry the operation after doing instance recovery automatically.

ORA-15150: instance lock mode 'string' conflicts with other ASM instance(s)
Cause: Some other ASM instance used the lock name space in a conflicting mode.
Action: Shut down the other instance or start up in compatible mode. Alternatively, set the DB_UNIQUE_NAME initialization parameter to avoid the conflict.

ORA-15151: missing or invalid version number for rolling migration
Cause: The command did not sepcify a valid version number.
Action: Correct the version number in the command. It should be of the form v#.#.#.#.# or other forms with fewer numbers delimited by a period. The version number must be different from the current software version of the instance.

ORA-15152: cluster in rolling upgrade
Cause: The cluster was already in the middle of rolling upgrade.
Action: Rolling upgrade needs to be stopped before attempting to start again.

ORA-15153: cluster not in rolling upgrade
Cause: The cluster was not in rolling upgrade.
Action: Start the rolling upgrade using the ALTER SYSTEM START ROLLING command.

ORA-15154: cluster rolling upgrade incomplete
Cause: The cluster was still performing rolling upgrade.
Action: Ensure that all the instances in the cluster are upgraded before retrying the command.

ORA-15155: version incompatible with the cluster
Cause: The current software version of the instance was incompatible with the other members of the cluster.
Action: Make sure that all the members of the cluster are at the same version. If you are attempting to perform rolling upgrade, execute ALTER SYSTEM START ROLLING command. Ensure that the version being upgraded to is compatible with the existing version of the cluster.

ORA-15156: cluster in rolling upgrade from version [string] to [string]
Cause: The current software version of the instance was incompatible with the rolling upgrade operation of the cluster.
Action: The version number of new member instance must be one of the two versions involved in the rolling upgrade.

ORA-15157: rolling migration is not allowed
Cause: The cluster was not capable of handling ASM rolling migration.
Action: The Oracle Cluster Services is using vendor clusterware. Oracle cannot perform rolling upgrade or downgrade using vendor cluster ware. Restart ASM instances using Oracle cluster ware and retry the operation.

ORA-15158: rolling upgrade prevented by string
Cause: One or more instances were blocking the rolling upgrade.
Action: Terminate or wait until the reported operation is complete before attempting the rolling upgrade to the cluster.

ORA-15160: rolling migration internal fatal error in module string,string
Cause: Rolling migration experienced a fatal error.
Action: Please contact Oracle support services.

ORA-15161: invalid SYS_CLUSTER_PROPERTIES parameter
Cause: The parameter passed in for SYS_CLUSTER_PROPERTIES is invalid
Action: Pass in the correct parameter, refer to user documentation for a list of allowed parameter values.

ORA-15162: cluster in rolling downgrade
Cause: The cluster was already in the middle of rolling downgrade.
Action: Rolling downgrade needs to be stopped before attempting to start again.

ORA-15163: cluster not in rolling downgrade
Cause: The cluster was not in rolling downgrade.
Action: Start the rolling downgrade using the ALTER SYSTEM START ROLLING command.

ORA-15164: cluster rolling downgrade incomplete
Cause: The cluster was still performing rolling downgrade.
Action: Ensure that all the instances in the cluster are downgraded before retrying the command.

ORA-15166: cluster in rolling downgrade from version [string] to [string]
Cause: The current software version of the instance was incompatible with the rolling downgrade operation of the cluster.
Action: The version number of new member instance must be one of the two versions involved in the rolling downgrade.

ORA-15168: rolling downgrade prevented by string
Cause: One or more instances were blocking the rolling downgrade.
Action: Terminate or wait until the reported operation is complete before attempting the rolling downgrade to the cluster.

ORA-15169: destination 'string' is a subdirectory of 'string'
Cause: Attempt to rename directory failed because the new directory name was a subdirectory of the original directory.
Action: Correct the path of the destination and try again.

ORA-15170: cannot add entry 'string' in directory 'string'
Cause: Other errors prevented directory/alias creation.
Action: Correct the errors and try again.

ORA-15171: invalid syntax in the alias path after 'string'
Cause: An invalid alias/directory name syntax was specified.
Action: Correct the alias path and try again.

ORA-15173: entry 'string' does not exist in directory 'string'
Cause: The specified alias did not exist in the given directory.
Action: Correct the alias path and try again.

ORA-15175: cannot create alias for diskgroup metadata file 'string'
Cause: An attempt was made to create an alias for a diskgroup metadata file.
Action: Correct the alias path and try again.

ORA-15176: file 'string' already has an alias associated with it
Cause: An attempt was made to create an alias for a file that already had an existing alias.
Action: Correct the file name and try again or drop existing alias.

ORA-15177: cannot operate on system aliases
Cause: An attempt was made to modify a system alias.
Action: Correct the alias name and try again.

ORA-15178: directory 'string' is not empty; cannot drop this directory
Cause: An attempt was made to drop a directory that contained valid entries.
Action: Correct the directory path or specify the FORCE option to drop a directory that is not empty.

ORA-15179: missing or invalid alias name
Cause: The command did not specify a valid alias identifier.
Action: Specify a valid alias identifier.

ORA-15180: could not open dynamic library string, error [string]
Cause: The library was not accessible
Action: Correct the permissions of the library and try again.

ORA-15181: symbol [string] not found in library string, error [string]
Cause: An error was encountered while loading the specified ASMLIB symbol.
Action: Correct the error reported and try again.

ORA-15182: ASMLIB [string] version mismatch, ORACLE version [string]
Cause: The ASMLIB version reported is not supported by the ORACLE binary.
Action: Install the correct library and try again.

ORA-15183: ASMLIB initialization error [string]
Cause: Unable to initialize the ASMLIB in ORACLE.
Action: Contact ASMLIB library vendor support with the error details.

ORA-15184: ASMLIB error could not be determined [string] [string]
Cause: An error was encountered which cannot be diagnosed further.
Action: Contact ASMLIB libary vendor for support.

ORA-15185: could not close dynamic library string, error [string]
Cause: Could not close the dynamic library.
Action: Contact ASMLIB libary vendor for support.

ORA-15186: ASMLIB error function = [string], error = [string], mesg = [string]
Cause: An error occured during a call to function listed in the error.
Action: The detailed message associated with the error is listed along with the error. Correct the error and try again or contact ASMLIB library vendor for support.

ORA-15192: invalid ASM disk header [string] [string] [string] [string] [string]
Cause: ASM encountered an invalid disk header.
Action: Contact Oracle Support Services.

ORA-15196: invalid ASM block header [string:string] [string] [string] [string] [string != string]
Cause: ASM encountered an invalid metadata block.
Action: Contact Oracle Support Services.

ORA-15197: suppressing string additional ASM messages
Cause: The ASM command generated so many erorrs that this summary message was reported in place of many individual messages.
Action: If the command contained multiple actions, try separating each action into its own command and executing each command by itself. Otherwise, try not to generate so many errors.

ORA-15198: operation string is not yet available
Cause: An unimplemented operation was attempted.
Action: Consider upgrading to later releases as they become available.

ORA-15200: initialization parameter string (string) is not a power of two
Cause: The value specified for this initialization parameter was not a power of two.
Action: Correct the initialization parameter value and restart the instance.

ORA-15201: disk string contains a valid RDBMS file
Cause: A disk specified in a CREATE DISKGROUP or ALTER DISKGROUP ... ADD DISK command appeared to contain a file from an existing database. By default, ASM will not allow a diskgroup to be created using this disk, as a safeguard against damaging an existing database.
Action: Check that the ASM disk specification is correct. Otherwise, when storage from a defunct database is reused as part of an ASM diskgroup, specify the FORCE option to the ASM SQL command.

ORA-15202: cannot create additional ASM internal change segment
Cause: The mount of a diskgroup by an additional instance in a RAC cluster required more space for internal use by ASM than was available in the diskgroup.
Action: Delete unused files from the diskgroup or add additional disks to the diskgroup and retry the operation.

ORA-15203: diskgroup string contains disks from an incompatible version of ASM
Cause: Diskgroup was created by an ASM instance with a higher compatibility setting.
Action: Use an ASM instance with the appropriate software version to mount the diskgroup.

ORA-15204: database version string is incompatible with diskgroup string
Cause: The database compatibility of the diskgroup was advanced to a later version.
Action: Upgrade the database instance to appropriate version of ORACLE.

ORA-15205: requested mirror side unavailable
Cause: The requested mirror side of a block is either unallocated or allocated on a disk that has been dropped from the diskgroup.
Action: Resubmit the request or try another mirror side.

ORA-15206: duplicate diskgroup string specified
Cause: A command specified the same diskgroup twice.
Action: Specify each diskgroup only once.

ORA-15210: conflicting or duplicate PERMISSION options
Cause: The PERMISSION clause contained the USER, GROUP, or OTHER keyword more than once.
Action: Specify each keyword, at most, once.

ORA-15211: conflicting or duplicate OWNERSHIP options
Cause: The OWNERSHIP clause contained either the OWNER or the GROUP keyword more than once.
Action: Specify each keyword, at most, once.

ORA-15212: missing or invalid OWNER or GROUP name
Cause: The command did not specify a valid name for either the OWNER or the GROUP keyword.
Action: Specify a valid name for either the OWNER or the GROUP keyword.

ORA-15213: command operates on only one attribute
Cause: More than one disk group attribute was specified in the ALTER DISKGROUP statement.
Action: Specify only one disk group attribute per ALTER DISKGROUP statement.

ORA-15214: missing or invalid attribute specification
Cause: The command did not specify a valid attribute name or a valid attribute value.
Action: Specify a valid attribute name and value pair.

ORA-15215: missing or invalid user name
Cause: The command did not specify a valid user name.
Action: Specify a valid user name.

ORA-15216: missing or invalid user group name
Cause: The command did not specify a valid user group name.
Action: Specify a valid user group name.

ORA-15217: missing or invalid timeout value after DROP AFTER
Cause: The command did not specify a valid timeout value after the DROP AFTER clause.
Action: Specify a valid timeout value after the DROP AFTER clause.

ORA-15218: timeout value exceeded range
Cause: The OFFLINE timeout value exceeded the range of 0-136 years, inclusive. 136 years are 49674 days, 1192176 hours, and 71530560 minutes.
Action: Specify a timeout value within the range of 0-136 years, inclusive.

ORA-15219: conflicting or duplicate ZONE options
Cause: The command contained one or more of the following:
- both the HOT and the COLD keywords
- both the MIRRORHOT and the MIRRORCOLD keywords
- the HOT keyword more than once
- the COLD keyword more than once
- the MIRRORHOT keyword more than once
- the MIRRORCOLD keyword more than once
Action: Specify either the HOT or the COLD keyword and either the MIRRORHOT or the MIRRORCOLD keyword, at most, once.

ORA-15220: invalid file attribute specification
Cause: The keyword UNPROTECTED, MIRROR, HIGH, FINE, or COARSE was specified in a MODIFY FILE clause. These file attributes are immutable once a file is created.
Action: Specify a ZONE keyword; for example, HOT, COLD, MIRRORHOT, or MIRRORCOLD.

ORA-15221: ASM operation requires compatible.asm of string or higher
Cause: The ASM operation specified requires a higher disk group attribute value for compatible.asm.
Action: Set the disk group attribute compatible.asm to or above the requested version.

ORA-15230: diskgroup 'string' does not require the FORCE option
Cause: An attempt was made to MOUNT or DROP a disk group with the FORCE option.
Action: MOUNT and DROP diskgroup with the FORCE option are only permitted if the diskgroup cannot be mounted normally.

ORA-15231: advancing diskgroup compatibility would exclude connected clients
Cause: Disk group compatibility could not be advanced because connected clients were at a lower compatibility than the target value.
Action: Make sure all connected clients are at target compatibility level or higher.

ORA-15232: cannot advance diskgroup compatibility due to offline disks
Cause: Disk group compatibilty could not be advanced because some disks are offline.
Action: Retry the command after offline disks are dropped.

ORA-15233: cannot advance diskgroup compatibility due to [string]
Cause: Disk group compatibilty could not be advanced because of errors.
Action: Check the alert log for more information on the reason for the failure.

ORA-15234: target RDBMS compatibility (string) exceeds ASM compatibility (string)
Cause: An attempt was made to advance RDBMS compatibility beyond the disk group's ASM compatibility.
Action: Advance ASM compatibility before advancing RDBMS compatibility.

ORA-15235: diskgroup string mount mode conflicts with existing mount
Cause: The mode specified in the diskgroup mount command conflicted with the mode in which it was mounted on some other instance.
Action: Specify a compatible mode in the diskgroup mount command.

ORA-15236: diskgroup string mounted in restricted mode
Cause: The specified diskgroup was mounted in restricted mode prohibiting client access.
Action: Dismount the diskgroup and remount it in appropriate mode.

ORA-15237: attribute string cannot be set in CREATE DISKGROUP
Cause: The specified attribute may not be set with the CREATE DISKGROUP command.
Action: Check the attribute name or use ALTER DISKGROUP SET ATTRIBUTE.

ORA-15238: string is not a valid value for attribute string
Cause: The specified value was not valid for the attribute.
Action: Check the attribute name and value.

ORA-15239: allocation unit size higher than string requires RDBMS compatibility string
Cause: The allocation unit size requested exceeded the limit imposed by the RDBMS compatibility setting.
Action: Use a smaller allocation unit size or specify a higher RDBMS compatibility setting.

ORA-15240: attribute name string is invalid
Cause: The attribute name was not valid or was not recognized.
Action: Check the attribute name.

ORA-15241: attribute string is read only
Cause: The attribute value is read-only and cannot be changed.
Action: None. The attribute value cannot be changed.

ORA-15242: could not set attribute string
Cause: An error occurred while setting the attribute.
Action: Look at the underlying error(s) on the error stack.

ORA-15243: string is not a valid version number
Cause: The given version number was invalid, or not valid in this context.
Action: Verify that the version number is valid and is appropriate for this command. Check for additional errors reported.

ORA-15244: new compatibility setting less than current [string]
Cause: The compatibility setting was invalid. The compatibility setting can only be advanced.
Action: Check the version number.

ORA-15245: ASM disk string is already being brought online
Cause: An attempt was made to bring online a disk that is already being brought online.
Action: Change the ONLINE statement to exclude the disk.

ORA-15246: cannot bring ASM disk string both online and then offline in the same statement
Cause: An attempt was made to bring the specified disk both online and offline in the same statement.
Action: Revise the statement to either bring the disk online or take the disk offline.

ORA-15247: cannot specify both WAIT and NOWAIT options in the same statement
Cause: An attempt was made to specify both WAIT and NOWAIT options in the same statement.
Action: Revise the statement and include at most one option.

ORA-15248: ASM attributes feature not enabled
Cause: The ASM attributes feature was not enabled.
Action: Advance disk group ASM compatibility to version 11.1.0 or newer.

ORA-15249: could not locate ASM attribute string
Cause: The specified attribute could not be accessed.
Action: Check the attribute name and examine underlying error(s) on the error stack.

ORA-15250: insufficient diskgroup space for rebalance completion
Cause: The command attempted to reduce the available diskgroup space below the current space used.
Action: Consult V$ASM_DISK to determine the space requirements for the diskgroup contents, and repeat the command after making the required storage available.

ORA-15251: only restricted mount is allowed in the ASM instance
Cause: The ASM instance was started in restricted mode, and an attempt was made to mount a diskgroup in non-restricted mode.
Action: Start the ASM instance in non-restricted mode and mount the diskgroup again, or mount the diskgroup in restricted mode.

ORA-15281: not all specified disks were brought ONLINE
Cause: Some of the disks specified either experienced I/O errors while being brought ONLINE, or were simultaneously brought OFFLINE or dropped in another session, or were full.
Action: Query V$ASM_DISK or use ASMCMD LSDSK to determine which disks were not brought ONLINE. Inspect any additional error messages and the alert log to determine the exact cause. If some of the disks failed, either fix the cause of the failures or drop the disks. If some of the disks are full, either free space in the disk group or add new disks to the diskgroup.

ORA-15282: ASM disk "string" is not visible cluster-wide
Cause: An ALTER DISKGROUP ONLINE command specified a disk that could not be discovered by one or more nodes in a RAC cluster configuration.
Action: Check operating system permissions for the device and the storage sub-system configuration on each node in the RAC cluster that cannot identify the disk.

ORA-15283: ASM operation requires compatible.rdbms of string or higher
Cause: The ASM operation specified requires a higher disk group attribute value for compatible.rdbms.
Action: Set the disk group attribute compatible.rdbms to or above the requested version.

ORA-15284: ASM terminated ALTER DISKGROUP ONLINE
Cause: None of the disks specified by ALTER DISKGROUP ONLINE could be brought ONLINE.
Action: Inspect additional error messages and the alert log to determine why the specified disks cannot be brought ONLINE.

ORA-15285: disk 'string' violates disk group attribute string
Cause: Including the specifed disk would violate a restriction imposed by the specified disk group attribute.
Action: Retry the operation while omitting the offending disk or change the attribute.

ORA-15286: could not set disk group attribute string due to offline disks
Cause: The specified disk group attribute could not be set because the disk group includes offline disks.
Action: Retry the operation after the offline disks in this disk group are dropped or brought online.

ORA-15287: could not set disk group attribute string due to incompatible disks
Cause: The specified disk group attribute could not be set because the disk group includes disks that conflict with the new value.
Action: Retry the operation after dropping the conflicting disks in this disk group.

ORA-15288: disk(s) require disk group attribute string clause
Cause: Some of the disks specified by the command also require the specified disk group attribute to be stated.
Action: Retry the command including an ATTRIBUTE clause for the required disk group attribute. Alternatively, omit the disks that require setting the disk group attribue. See the alert log for additional information on the disks that require setting the disk group attribute.

ORA-15289: ASM disk string cannot be resized beyond string M
Cause: A resize disk command specified a size beyond the maximum allowed for this disk.
Action: Check alert logs from all ASM instances to identify the reason for the size limitation. If there are any 10g database instances using this disk group, shut down those instances and retry the resize operation.

ORA-15290: operation not permitted on offline disk string
Cause: An attempt was made to specify an operation that is only permitted on disks that are online. The specified disk was not online.
Action: Online the disk or wait for online to complete before retrying the operation.

ORA-15291: ASM could not add disk "string" to disk group "string"
Cause: An attempt was made to add a disk to a disk group while the distribution of disks in failure groups was too uneven.
Action: Add or drop disks to or from failure groups to balance their distribution in all failure groups and retry the operation.

ORA-15292: Disk name string is being used by another disk
Cause: The specified disk name could not be reused because an 11.1.0.6.0 or earlier database instance had it cached in memory.
Action: Do one of the following
- Specify a different name for the disk.
- Wait for the rebalance to complete successfully.
- Identify the database instance with the problem and shut it down before retrying the command.

ORA-15293: operation disallowed by ASM_POWER_LIMIT
Cause: This operation required data movement in order to complete successfully. However, ASM_POWER_LIMIT was set to zero, thereby preventing this operation.
Action: Repeat the operation after setting ASM_POWER_LIMIT to a non-zero value.

ORA-15294: SYSASM privilege not allowed on database instance
Cause: The SYSASM privilege was not allowed on this database instance; it is allowed only on an ASM instance.
Action: Use either the SYSDBA or the SYSOPER privilege.

ORA-15295: FINE striping not allowed for the Staleness Registry
Cause: An SQL command attempted to set the striping attribute of the ASM_STALE template to FINE striping.
Action: Do not modify the striping attribute of the ASM_STALE template.

ORA-15450: invalid volume name specifier
Cause: The volume name specified was invalid
Action: Specify a valid volume name.

ORA-15451: missing or invalid volume size specifier
Cause: The volume size specified was invalid.
Action: Specify a valid volume size.

ORA-15452: missing or invalid stripe width specifier
Cause: The volume stripe width specified was invalid.
Action: Specify a valid volume stripe width.

ORA-15453: invalid STRIPE_COLUMNS specifier
Cause: An ADD VOLUME command did not specify a valid number of stripe columns.
Action: Specify a valid number of stripe columns.

ORA-15454: ALTER DISKGROUP ALL cannot use single volume names
Cause: An ALTER DISKGROUP ALL command specified a single volume or a list of volumes
Action: Use the ALL keyword when specifying volumes on multiple diskgroups.

ORA-15455: FORCE option cannot be used when specifying ALL volumes
Cause: The FORCE option was used to disable ALL volumes.
Action: Use FORCE option to disable one volume at a time.

ORA-15456: missing or invalid volume usage specifier
Cause: The command did not specify a valid volume usage string.
Action: Specify a valid volume usage string with alphanumeric characters.

ORA-15457: first letter of the volume name is not alphabetic
Cause: A volume name was specified with a nonalphabetic first character.
Action: Set the first character of the volume name to be alphabetic.

ORA-15458: invalid character in volume name
Cause: A volume name was specified with an invalid character.
Action: Use a volume name with only alphanumeric characters.

ORA-15459: STRIPE_WIDTH of string is not a power of two
Cause: An ADD VOLUME command specified a STRIPE_WIDTH that was not a power of two.
Action: Select a STRIPE_WIDTH that is a power of two; for example, 4K, 8K, etc.

ORA-15460: volume name 'string' is already in use
Cause: An ADD VOLUME command specified a volume name that was already used by another volume.
Action: Select a different name for the volume.

ORA-15461: STRIPE_WIDTH of string bytes is less than the minimum of string bytes
Cause: An ADD VOLUME command specified a STRIPE_WIDTH that was too small.
Action: Select a larger STRIPE_WIDTH.

ORA-15462: STRIPE_WIDTH of string bytes is greater than the maximum of string bytes
Cause: An ADD VOLUME command specified a STRIPE_WIDTH that was too large.
Action: Select a smaller STRIPE_WIDTH.

ORA-15463: volume size of stringK is less then the minimum of stringM
Cause: The volume size specified was too small.
Action: Select a larger volume size.

ORA-15464: STRIPE_COLUMNS of string is greater than the maximum of string
Cause: An ADD VOLUME command specified a STRIPE_COLUMNS that was that was too large.
Action: Select a smaller STRIPE_COLUMNS value.

ORA-15465: STRIPE_COLUMNS of string is less than the minimum of string
Cause: An ADD VOLUME command specified a STRIPE_COLUMNS that was too small.
Action: Select a larger STRIPE_COLUMNS value.

ORA-15466: volume name 'string' does not exist
Cause: The command specified a volume name that does not exist.
Action: Ensure a valid volume name is used.

ORA-15467: volume operation is already in progress
Cause: Another command is currently operating on the specified volume.
Action: Wait a short time before retrying the command.

ORA-15468: operation not permitted; volume 'string' currently being accessed
Cause: An attempt was made to communicate with the volume driver. The volume was being accessed by another application and, therefore, could not be changed.
Action: Shut down all applications that might be accessing this volume and then retry the command.

ORA-15469: VBG process terminated with error
Cause: A volume background process terminated with error.
Action: Wait for process to restart.

ORA-15470: VDBG process terminated with error
Cause: The volume driver background process terminated with error.
Action: Warm start instance.

ORA-15471: volume redundancy incompatible with diskgroup redundancy
Cause: An ADD VOLUME command specified a volume redundancy that was incompatible with the diskgroups redundancy.
Action: Specify a valid volume redundancy. A volume cannot have external redundancy with a high redundancy diskgroup. Also, a volume cannot have high redundancy with an external redundancy diskgroup.

ORA-15472: volume library cannot be loaded. Platform may not support volume creation.
Cause: The volume library could not be loaded. Either the platform does not support volume operations, or there is a problem with the library.
Action: Ensure that the platform supports volumes. If the platform does support volumes, check the alert log for library loading failure information.

ORA-15473: access to a volume's storage through an unsupported interface
Cause: An attempt was made to access or modify a volume's storage through an unsupported interface.
Action: Use supported interfaces for access to volume devices.

ORA-15474: volume name is greater than string characters
Cause: An ADD VOLUME command specified a volume name that was too long.
Action: Select a smaller volume name.

ORA-15475: usage string is greater than string characters
Cause: The usage string specified was too long.
Action: Select a smaller usage string.

ORA-15476: resize of OFS volume must use OFS resize command
Cause: An attempt was made to resize an OFS volume through SQL.
Action: Use the supported OFS commands to resize the volume.

ORA-15477: cannot communicate with the volume driver
Cause: An attempt was made to communicate with the volume driver.
Action: Check that the ASM volume driver is loaded. If so, check the alert log to identify the reason for failure and take necessary action to prevent such failures in the future.

ORA-15478: OFSC process terminated with error
Cause: The ofs background process terminated with error
Action: Wait for process restart

ORA-15479: diskgroup version incompatible with ASM volumes
Cause: The diskgroup's version was incompatible with creating volumes.
Action: Upgrade the diskgroup version in order to use volume functionality.

ORA-15480: error reported in the ASM volume driver
Cause: An error was reported in the ASM volume driver.
Action: Check the operating system log files to identify the reason for the failure and take necessary action to prevent such failures in the future.

ORA-15481: missing or invalid volume mountpath specifier
Cause: A invalid volume mountpath string was specified.
Action: Specify a valid volume mountpath string with alphanumeric characters.

ORA-15482: failed to create/remove path to volume device file
Cause: Improper driver installation.
Action: Check the alert log for device file creation failure information. Reload the driver using the supported installation method.

ORA-15501: cannot start workload capture on instance string
Cause: Given instance encountered unexpected errors while trying to start the workload capture.
Action: Check the alert log and other diagnostics in the given instance to diagnose the problem.

ORA-15502: cannot stop workload capture on instance string
Cause: Given instance encountered unexpected errors while trying to stop the workload capture.
Action: Check the alert log and other diagnostics in the given instance to diagnose the problem.

ORA-15503: cannot startup instance when procedures in "DBMS_WORKLOAD_CAPTURE" or "DBMS_WORKLOAD_REPLAY" are in the middle of their execution
Cause: The new instance could not be started because the database was executing a procedure in either the DBMS_WORKLOAD_CAPTURE or DBMS_WORKLOAD_REPLAY package.
Action: Start the new instance after such procedures in the given packages have finished execution.

ORA-15504: cannot start workload capture because instance string not present in RESTRICTED SESSION mode
Cause: The NO_RESTART_MODE option in DBMS_WORKLOAD_CAPTURE.START_CAPTURE was FALSE, therefore all the active instances were expected to be in the RESTRICTED SESSION mode.
Action: Start all instances using STARTUP RESTRICT or execute ALTER SYSTEM ENABLE RESTRICTED SESSION on all active instances before issuing DBMS_WORKLOAD_CAPTURE.START_CAPTURE.

ORA-15505: cannot start workload capture because instance string encountered errors while accessing directory "string"
Cause: Given instance could not access the specified CAPTURE directory or the specified CAPTURE directory already had a workload capture in it.
Action: Provide a directory object that is valid, empty and accessible from all the instances in the database cluster.

ORA-15506: cannot prepare instance string for replay
Cause: Given instance encountered unexpected errors while trying to prepare for a workload replay.
Action: Check the alert log and other diagnostics in the given instance to diagnose the problem.

ORA-15507: cannot start workload replay on instance string
Cause: Given instance encountered unexpected errors while trying to start a workload replay.
Action: Check the alert log and other diagnostics in the given instance to diagnose the problem.

ORA-15508: cannot cancel workload replay on instance string
Cause: Given instance encountered unexpected errors while trying to cancel a workload replay.
Action: Check the alert log and other diagnostics in the given instance to diagnose the problem.

ORA-15509: workload replay has been cancelled
Cause: Workload replay was cancelled.
Action: Restart the workload replay.

ORA-15510: cannot perform operation when "STATISTICS_LEVEL" is "BASIC"
Cause: The STATISTICS_LEVEL initialization parameter was set to BASIC.
Action: Change the STATISTICS_LEVEL initialization parameter setting to either TYPICAL or ALL.

ORA-15511: cannot process workload capture because no user sessions were recorded
Cause: No user sessions were recorded in the given workload capture. Processing this capture failed because no user workload was captured.
Action: Capture a workload in which at least one user session connects and performs some operations.

ORA-15512: directory "string" does not contain a valid processed workload capture
Cause: One or more files created by DBMS_WORKLOAD_REPLAY.PROCESS_CAPTURE were missing.
Action: Process the workload capture using DBMS_WORKLOAD_REPLAY.PROCESS_CAPTURE and then retry the command.

ORA-15513: cannot access the input directory
Cause: Given input directory is either invalid or inaccessible.
Action: Verify that the input directory is valid and accessible and then retry the command.

ORA-15514: cannot find a match for the remote procedure call during replay
Cause: The corresponding PL/SQL program was either dropped or modified.
Action: Verify that the corresponding PL/SQL program is defined the same way during replay as it was defined during workload capture.

ORA-15515: error while replaying remote procedure call: "string.string.string"
Cause: Error encountered during the replay of a remote procedure call.
Action: Correct the cause of the preceding error and restart workload replay.

ORA-15516: parallel preprocessing worker hit error
ORA-string
Cause: One of the parallel preprocessing workers died unexpectedly while processing the workload.
Action: Find the root cause or simply preprocess the workload using only one process.

ORA-15517: cannot start parallel preprocessing worker
Cause: One of the parallel preprocessing workers could not be started.
Action: Find the root cause or simply preprocess the workload using only one process.

ORA-15518: parallel preprocessing encountered an unexpected error
Cause: An unexpected error occured during parallel preprocessing.
Action: Find the root cause or simply preprocess the workload using only one process.

ORA-15551: workload replay client cannot connect to database server
Cause: The server connection identifier was invalid.
Action: Restart the client with correct server connection identifier.

ORA-15552: workload replay client cannot login to database server
Cause: 1) the replay client used an invalid username or password; 2) the replay user does not have the privilege to switch user; 3) the recorded username does not exist in the replay database.
Action: 1) restart replay client with correct username and password 2) grant user switching prvilege to the replay user 3) verify whether the replay database was restored properly

ORA-15553: workload replay client cannot execute the DBMS_WORKLOAD_REPLAY package
Cause: Workload Replay Client's replay user did not have EXECUTE permission on the DBMS_WORKLOAD_REPLAY package.
Action: Grant execute permission on the DBMS_WORKLOAD_REPLAY package to replay user and restart the Workload Replay Client.

ORA-15554: cannot start workload replay client because the database server is not in PREPARE mode
Cause: The Workload Replay Client could not connect to the database server because the database server was not in the PREPARE mode.
Action: Put the database in PREPARE mode by using DBMS_WORKLOAD_REPLAY.PREPARE_REPLAY, and restart the Workload Replay Client.

ORA-15555: workload replay client encountered unexpected error: "string"
Cause: Workload Replay Client encountered an unexpected error.
Action: Check the Workload Replay Client's log files and the database server alert log to diagnose the problem.

ORA-15556: invalid input specified to the workload replay client
Cause: Invalid input was specified.
Action: Use the Workload Replay Client's HELP=Y option to know more about valid input options.

ORA-15557: workload replay client cannot access the replay directory or the database version do not match the preprocessing one
Cause: The Workload Replay Client could not access the directory that contained the workload to be replayed, or the workload was preprocessed by a different version of the database.
Action: Restart the workload replay after specifying the correct replay directory, or preprocess it with the correct database.

ORA-15558: replay thread encountered unexpected error
Cause: A single replay thread got disconnected from the server due to an unexpected error.
Action: Check the Workload Replay Client's log files and the database server alert log to diagnose the problem.

ORA-15559: workload replay client cannot open workload capture file
Cause: The Workload Replay Client could not access one or more workload capture files from the replay directory.
Action: Restart the workload replay after copying all the workload capture files to the replay directory.

ORA-15560: workload replay client cannot access the work directory
Cause: The Workload Replay Client could not access the work directory to write log files for debug information.
Action: Restart the Workload Replay Client after specifying the correct work directory.

ORA-15561: workload replay client cannot connect to the remapped connection with conn_id : string
Cause: The specified connection is invalid or the specified host is inaccessible.
Action: Test the specified connection using other methods and redefine the connection remapping, if necessary. Consult the view DBA_WORKLOAD_CONNECTION_MAP to inspect connection remappings.

ORA-15562: workload replay client cannot read the DBA_WORKLOAD_CONNECTION_MAP view
Cause: The DBA_WORKLOAD_CONNECTION_MAP view did not exist or was not accessible.
Action: Re-create the workload capture and replay views. For additional information, see the documentation.

ORA-15563: workload replay client cannot spawn new threads
Cause: The Workload Replay Client does not have enough resource (CPU or memory) to spawn new threads.
Action: Restart the workload replay after allocating more resource (CPU and memory) to the Workload Replay Client or use more hosts as replay clients to drive the workload.

ORA-15564: contents of the replay directory provided to the workload replay client do not match with the replay directory provided to the database server
Cause: The processed workload capture files given to the workload replay client directory did not match the contents of the replay directory given as input to DBMS_WORKLOAD_REPLAY.INITIALIZE_REPLAY.
Action: Provide the same processed workload capture files to both the database server and all the workload replay clients and restart the replay. If the same workload capture files were processed more than once, provide a copy of the latest processed workload capture files to all the workload replay clients and the database server.

ORA-15566: workload replay client cannot replay user call in the current version
Cause: The workload replay client encountered a user call in the captured workload that was not supported for replay in the current version.
Action: Look in the DBA_WORKLOAD_REPLAY_DIVERGENCE view for details about the call that encountered this error. Refer to the documentation for more details on the types of workload that are not supported in the current version.

ORA-15590: encountered an incomplete workload capture file
Cause: The captured workload contained one or more incomplete recording files. This can happen when the original workload capture's FINISH_CAPTURE command timed out while waiting for all the active sessions to close their workload capture files.
Action: Incomplete capture files will not interfere with the processing and replaying of the captured workload. This is simply a warning message to point out that some database calls might not have been recorded due to FINISH_CAPTURE command timing out.

ORA-15601: Invalid value specified for parameter "string"
Cause: An invalid value was specified for the given parameter.
Action: Correct the value being specified for the parameter.

ORA-15602: Parameter "string" cannot be NULL.
Cause: An attempt was made to call a procedure without a required parameter.
Action: Specify a valid value for this parameter.

ORA-15603: Action cannot be performed when database is in read-only mode.
Cause: A procedure in DBMS_AUTO_TASK_ADMIN package was invoked when database was open in read-only mode.
Action: Retry when database is open in read/write mode.

ORA-15604: Initialization parameters prevent client from being enabled.
Cause: An attempt was made to enable a client that was disabled for automatic execution by an initialization parameter.
Action: Check the related client parameters and try again.

ORA-15605: "string" is not a Maintenance Window
Cause: Window name passed to DBMS_AUTO_TASK_ADMIN.ENABLE procedure must be a member of the MAINTENANCE_WINDOW_GROUP.
Action: Make the window a member of the MAINTENANCE_WINDOW_GROUP and retry the call.

ORA-16000: database open for read-only access
Cause: The database has been opened for read-only access. Attempts to modify the database using inappropriate DML or DDL statements generate this error.
Action: In order to modify the database, it must first be shut down and re-opened for read-write access.

ORA-16001: database already open for read-only access by another instance
Cause: The database has been opened for read-only access by another instance, and cannot be opened for read-write access by this instance.
Action: This instance must be opened for read-write access, or all other instances must first be shut down and re-opened for read-only access.

ORA-16002: database already open for read-write access by another instance
Cause: The database has been opened for read-write access by another instance, and cannot be opened for read-only access by this instance.
Action: This instance must be opened for read-only access, or all other instances must first be shut down and re-opened for read-write access.

ORA-16003: standby database is restricted to read-only access
Cause: To ensure its integrity, a standby database can only be opened for read-only access.
Action: Re-issue the ALTER DATABASE OPEN specifying READ ONLY.

ORA-16004: backup database requires recovery
Cause: The control file is for a backup database which requires recovery, and cannot be opened for read-only access by this instance.
Action: Perform the necessary recovery and re-open for read-only access.

ORA-16005: database requires recovery
Cause: The database requires recovery, and therefore cannot be opened for read-only access by this instance.
Action: Perform the necessary recovery and re-open for read-only access.

ORA-16006: audit_trail destination incompatible with database open mode
Cause: The audit_trail initialization parameter was set to "DB" (or TRUE), which is incompatible with a database opened for read-only access.
Action: When the database is opened for read-only access, the audit_trail initialization parameter can only be set to "OS" or "NONE" (FALSE).

ORA-16007: invalid backup control file checkpoint
Cause: The backup control file being opened for read-only access does not contain a valid control file checkpoint. Therefore the database cannot be opened for read-only access.
Action: First open the database for read-write access which will result in valid control file checkpoint. Then re-open the database for read-only access.

ORA-16008: indeterminate control file checkpoint
Cause: The control file for the database being opened for read-only access was created via CREATE CONTROLFILE. Therefore a control file checkpoint could not be calculated and the database cannot be opened for read-only access.
Action: First open the database for read-write access which will result in valid control file checkpoint. Then re-open the database for read-only access.

ORA-16009: remote archive log destination must be a STANDBY database
Cause: The database associated with the archive log destination service name is other than the required STANDBY type database. Remote archival of redo log files is not allowed to non-STANDBY database instances.
Action: Take the necessary steps to create the required compatible STANDBY database before retrying the ARCHIVE LOG processing.

ORA-16011: Archivelog Remote File Server process in Error state
Cause: The archivelog remote file server (RFS) process at the specified standby database site has experienced an unrecoverable error and is unable to receive further archive log data.
Action: Correct the problem at the standby database site.

ORA-16012: Archive log standby database identifier mismatch
Cause: The database identifiers of the Primary and Standby database do not match. Remote archival of redo log files is not allowed to incompatible STANDBY database instances.
Action: Take the necessary steps to create the required compatible STANDBY database before retrying the ARCHIVE LOG processing.

ORA-16013: log string sequence# string does not need archiving
Cause: An attempt was made to archive the named file manually, but the file did not require archiving. The file had previously been successfully archived.
Action: No action is required.

ORA-16014: log string sequence# string not archived, no available destinations
Cause: An attempt was made to archive the named log, but the archive was unsuccessful. The archive failed because there were no archive log destinations specified or all destinations experienced debilitating errors.
Action: Verify that archive log destinations are being specified and/or take the necessary step to correct any errors that may have occurred.

ORA-16015: log string sequence# string not archived, media recovery disabled
Cause: An attempt was made to archive the named log, but the archive was unsuccessful. A standby archive log destination was specified and the database was not media recovery enabled. This is not allowed.
Action: Disable the standby destination or enable media recovery and retry.

ORA-16016: archived log for thread string sequence# string unavailable
Cause: The managed standby database recovery operation has timed out waiting for the requested archived log file.
Action: Verify that the primary database is still archiving redo logs to the standby recovery database site and reissue the RECOVER STANDBY DATABASE WAIT command.

ORA-16017: cannot use LOG_ARCHIVE_DUPLEX_DEST without a primary archive destination
Cause: The parameter LOG_ARCHIVE_DUPLEX_DEST was set to a non-NULL value when the primary archive destination was set to NULL explicitly.
Action: Set the primary archive destination to a valid non-NULL value.

ORA-16018: cannot use string with LOG_ARCHIVE_DEST_n or DB_RECOVERY_FILE_DEST
Cause: One of the following events caused an incompatibility: 1) Parameter LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST was in use when a LOG_ARCHIVE_DEST_n (n = 1...10) parameter was encountered while fetching initialization parameters. 2) An ALTER SYSTEM ARCHIVE LOG START TO command was in effect when a LOG_ARCHIVE_DEST_n parameter was encountered while fetching initialization parameters. 3) A LOG_ARCHIVE_DEST_n parameter was in use when an ALTER SYSTEM command was used to define a value for either the LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST parameter. 4) Parameter DB_RECOVERY_FILE_DEST was in use when an attempt was made to use an ALTER SYSTEM or ALTER SESSION command to define a value for LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST.
Action: Eliminate any incompatible parameter definitions.

ORA-16019: cannot use string with LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST
Cause: One of the following events caused an incompatibility: 1) Parameter LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST was in use when the specified LOG_ARCHIVE_DEST_n (n = 1...10) or DB_RECOVERY_FILE_DEST parameter was encountered while fetching initialization parameters. 2) Parameter LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST was in use when an attempt was made to use an ALTER SYSTEM or ALTER SESSION command to define a value for the specified LOG_ARCHIVE_DEST_n or DB_RECOVERY_FILE_DEST parameter. 3) An ALTER SYSTEM ARCHIVE LOG START TO command was in effect when the specified LOG_ARCHIVE_DEST_n parameter was encountered while fetching initialization parameters. 4) An ALTER SYSTEM ARCHIVE LOG START TO command was in effect when an attempt was made to use an ALTER SYSTEM or ALTER SESSION command to define a value for the specified LOG_ARCHIVE_DEST_n parameter.
Action: Eliminate any incompatible parameter definitions.

ORA-16020: less destinations available than specified by LOG_ARCHIVE_MIN_SUCCEED_DEST
Cause: With automatic archiving enabled, the number of archive log destinations that could be used for the database was less than the LOG_ARCHIVE_MIN_SUCCEED_DEST parameter value.
Action: Either adjust the settings of the log archive destination parameters, or lower the value of LOG_ARCHIVE_MIN_SUCCEED_DEST.

ORA-16021: session string destination cannot be the same as session string destination
Cause: An attempt was made to change the first specified archive log parameter using ALTER SESSION to have a destination value that duplicates the session-level destination value of the second specified archive log parameter.
Action: Specify a different session destination value for one of the LOG_ARCHIVE_DEST_n parameters.

ORA-16022: LOG_ARCHIVE_DEST cannot be NULL because LOG_ARCHIVE_DUPLEX_DEST is non-NULL
Cause: An attempt was made to change parameter LOG_ARCHIVE_DEST to NULL when parameter LOG_ARCHIVE_DUPLEX_DEST is non-NULL.
Action: Either set parameter LOG_ARCHIVE_DEST to a non-NULL value, or set parameter LOG_ARCHIVE_DUPLEX_DEST to a NULL value.

ORA-16023: system string destination cannot be the same as session string destination
Cause: An attempt to change the first specified LOG_ARCHIVE_DEST_n (n = 1...10) parameter produced a destination that duplicates the session destination value of the second specified LOG_ARCHIVE_DEST_n parameter. This error can occur when setting a non-NULL value with the ALTER SYSTEM command. Or, this error can occur when setting a NULL value with ALTER SESSION command, because then the associated system destination value may appear as a duplicate.
Action: Specify a different destination value for the first specified LOG_ARCHIVE_DEST_n parameter.

ORA-16024: parameter string cannot be parsed
Cause: The value for the indicated LOG_ARCHIVE_DEST_n (n = 1...10) parameter could not be parsed. Common causes for this error are a misplaced equal sign, an unrecognized attribute, or an attribute that is missing a required value.
Action: Correct the value for the indicated LOG_ARCHIVE_DEST_n parameter.

ORA-16025: parameter string contains repeated or conflicting attributes
Cause: The value for the specified LOG_ARCHIVE_DEST_n (n = 1...10) parameter contained either repeated attributes or attributes that conflicted with each other.
Action: Correct the value for the indicated LOG_ARCHIVE_DEST_n parameter.

ORA-16026: parameter string contains an invalid attribute value
Cause: The value for the specified LOG_ARCHIVE_DEST_n (n = 1...10) parameter contained an attribute with an invalid value.
Action: Correct the value for the indicated LOG_ARCHIVE_DEST_n parameter.

ORA-16027: parameter string is missing a destination option
Cause: The value for the indicated LOG_ARCHIVE_DEST_n (n = 1...10) parameter failed to include a destination option. A destination option is specified using either the LOCATION or SERVICE attrbute.
Action: Correct the value for the indicated LOG_ARCHIVE_DEST_n parameter.

ORA-16028: new string causes less destinations than LOG_ARCHIVE_MIN_SUCCEED_DEST requires
Cause: With automatic archiving enabled, an attempt was made to change the indicated LOG_ARCHIVE_DEST_n or a LOG_ARCHIVE_DEST_STATE_n parameter (n = 1...10) to a value that reduces the number of archive log destinations to less than the specified LOG_ARCHIVE_MIN_SUCCEED_DEST value.
Action: Either select different options for the LOG_ARCHIVE_DEST_n or LOG_ARCHIVE_DEST_STATE_n parameters, or reduce the value for parameter LOG_ARCHIVE_MIN_SUCCEED_DEST.

ORA-16029: cannot change LOG_ARCHIVE_MIN_SUCCEED_DEST, no archive log destinations
Cause: An attempt was made to change the LOG_ARCHIVE_MIN_SUCCEED_DEST parameter when there are no archive log destinations.
Action: Define one or more log archive destinations using parameters LOG_ARCHIVE_DEST, LOG_ARCHIVE_DUPLEX_DEST, or LOG_ARCHIVE_DEST_n (n = 1...10). Then, change the value of parameter LOG_ARCHIVE_MIN_SUCCEED_DEST.

ORA-16030: session specific change requires a LOG_ARCHIVE_DEST_n destination
Cause: The following event caused an incompatibility: Parameter LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST was in use when an attempt was made to change the LOG_ARCHIVE_MIN_SUCCEED_DEST parameter with an ALTER SESSION command.
Action: Replace any LOG_ARCHIVE_DEST and LOG_ARCHIVE_DUPLEX_DEST parameters with LOG_ARCHIVE_DEST_n (n = 1...10) parameters.

ORA-16031: parameter string destination string exceeds string character limit
Cause: The value for the specified parameter contained a destination string that is too long.
Action: Replace the destination value for the specified parameter with a character string that has a length below the limit specified in the error message.

ORA-16032: parameter string destination string cannot be translated
Cause: The value for the specified parameter contained a destination string that could not be translated.
Action: Use a valid destination string in the specified parameter.

ORA-16033: parameter string destination cannot be the same as parameter string destination
Cause: An attempt was made to change the first specified archive log parameter to have a destination value that duplicates the system-level destination value of the second specified archive log parameter.
Action: Specify a different value for one of the archive log parameters.

ORA-16034: FROM parameter is incompatible with MANAGED recovery
Cause: Use of the FROM 'location' parameter is not allowed when MANAGED recovery has been specified.
Action: Correct the syntax and retry the command.

ORA-16035: missing required keyword string
Cause: The indicated keyword is required but was not specified.
Action: Correct the syntax and retry the command.

ORA-16036: invalid MANAGED recovery CANCEL option
Cause: A mode other than IMMEDIATE follows the CANCEL keyword in RECOVER MANAGED STANDBY DATABASE statement.
Action: Specify either nothing or IMMEDIATE following CANCEL.

ORA-16037: user requested cancel of managed recovery operation
Cause: The managed standby database recovery operation has been canceled per user request.
Action: No action is required.

ORA-16038: log string sequence# string cannot be archived
Cause: An attempt was made to archive the named file, but the file could not be archived. Examine the secondary error messages to determine the cause of the error.
Action: No action is required.

ORA-16039: RFS request version mismatch
Cause: A request to archive a redo log to a standby site failed because the request was incompatible with the Remote File Server (RFS) at the standby site.
Action: Verify that compatible versions of Oracle are running on the primary and all standby sites.

ORA-16040: standby destination archive log file is locked
Cause: The target standby destination archive log file is currently locked. This indicates that the file is being archived to by another Remote File Server (RFS) process.
Action: Check for and eliminate duplicate standby destination archive log service names defined for the primary database.

ORA-16041: Remote File Server fatal error
Cause: The Remote File Server (RFS) process at the standby destination archive log site has encountered a disabling error and is no longer available. Further archiving to the standby site may not be possible.
Action: Refer to the appropriate RFS trace file located at the standby site for details regarding the error encountered and if possible take corrective action.

ORA-16042: user requested cancel immediate of managed recovery operation
Cause: The managed standby database recovery operation has been canceled immediately per user request. Processing of the current archive log file has been interrupted and therefore the database is in an inconsistent state.
Action: No action is required.

ORA-16043: managed recovery session canceled
Cause: The standby database managed recovery operation has been canceled per user request or operation timeout.
Action: More specific messages will accompany this message.

ORA-16044: destination string attribute cannot be specified at session level
Cause: An archive log destination attribute was attempted to be modified at the session level.
Action: Use the ALTER SYSTEM command to modify the destination attribute.

ORA-16045: circular archive log destination dependency chain
Cause: An archive log destination contains a dependency to another archive log destination that also contains a dependency.
Action: The parent archive log destination cannot be dependent on another archive log destination. Use the ALTER SYSTEM command to remove one of the dependency attributes.

ORA-16046: Archive log destination failed due to failed dependent destination
Cause: The archive log destination is dependent upon another destination, which has failed. Therefore, this destination also fails.
Action: No action required.

ORA-16047: DGID mismatch between destination setting and standby
Cause: The DB_UNIQUE_NAME specified for the destination does not match the DB_UNIQUE_NAME at the destination.
Action: Make sure the DB_UNIQUE_NAME specified in the LOG_ARCHIVE_DEST_n parameter defined for the destination matches the DB_UNIQUE_NAME parameter defined at the destination.

ORA-16050: destination exceeded specified quota size
Cause: An archive log was attempted to be created in a destination with a specified maximum quota size. The creation of the archive log exceeded the specified quota size. Therefore, the destination has been made inaccessible to future archival operations.
Action: No action is required.

ORA-16051: parameter string contains an invalid delay time
Cause: The value for the specified LOG_ARCHIVE_DEST_n (n = 1...10) parameter contained a DELAY attribute with an invalid numeric value. The valid range is 0-5760 (in minutes).
Action: Correct the value for the indicated LOG_ARCHIVE_DEST_n parameter.

ORA-16052: DB_UNIQUE_NAME attribute is required
Cause: The DB_UNIQUE_NAME attribute is required when DG_CONFIG is enabled.
Action: Use the DB_UNIQUE_NAME attribute to specify a valid Data Guard Name for the destination. The list of valid DB_UNIQUE_NAMEs can be seen with the V$DATAGUARD_CONFIG view.

ORA-16053: DB_UNIQUE_NAME string is not in the Data Guard Configuration
Cause: The specified DB_UNIQUE_NAME is not in the Data Guard Configuration.
Action: If the DG_CONFIG attribute of the LOG_ARCHIVE_CONFIG parameter is enabled, you must specify a valid DB_UNIQUE_NAME. The list of valid DB_UNIQUE_NAMEs can be seen with the V$DATAGUARD_CONFIG view. This problem can also occur when specifying a non-standby destination with an DB_UNIQUE_NAME attribute that does not match the DB_UNIQUE_NAME initialization parameter for the current instance.

ORA-16055: FAL request rejected
Cause: FAL server rejects the FAL request from the FAL client. This may be caused by different reasons.
Action: to solve the problem.

ORA-16056: backup control file archival requires proper syntax
Cause: An attempt was made to perform an online log file archival using a backup control file. However, the USING BACKUP CONTROLFILE syntax was not specified.
Action: If the archival operation is correct when using a backup control file, then the USING BACKUP CONTROLFILE syntax is required.

ORA-16057: DGID from server not in Data Guard configuration
Cause: The Data Guard name of the primary database or the FAL server is not in the Data Guard configuration of the standby.
Action: In order for the primary database or the FAL server to archive logs to the standby database, the Data Guard name of the primary or FAL server must be in the Data Guard configuration of the standby.

ORA-16058: standby database instance is not mounted
Cause: The RFS process on the standby database received an internal error.
Action: Check the standby alert log and RFS trace files for more information.

ORA-16059: Log file is empty or invalid next available block
Cause: Archiving not allowed of an empty or invalid log file.
Action: No action is required.

ORA-16060: Log file is current
Cause: The current log file cannot be archived using its file name.
Action: No action is required.

ORA-16061: Log file status has changed
Cause: It is possible the online log file was reclaimed as a new log file either before archival started, or during the archival operation.
Action: No action is required.

ORA-16062: DGID from standby not in Data Guard configuration
Cause: The Data Guard name from the standby is not in the Data Guard configuration of the server.
Action: In order for the server to be allowed to archive logs to the standby, the Data Guard name of the standby must be in the Data Guard configuration of the server.

ORA-16063: remote archival is enabled by another instance
Cause: Remote archival of database REDO log files has been enabled by another instance, and cannot be disabled for this instance.
Action: Set the REMOTE_ARCHIVE_ENABLE parameter to TRUE and restart this instance.

ORA-16064: remote archival is disabled by another instance
Cause: Remote archival of database REDO log files has been disabled by another instance, and cannot be enabled for this instance.
Action: Set the REMOTE_ARCHIVE_ENABLE parameter to FALSE and restart this instance.

ORA-16065: remote archival disabled at standby destination
Cause: Receipt of remote archived REDO log files has been disabled at the associated standby destination host database.
Action: If appropriate change the associated archive log parameter to specify a local destination with the LOCATION keyword or defer the associated archive log destination. Or, if possible, set the standby REMOTE_ARCHIVE_ENABLE parameter to TRUE, or enable the RECEIVE attribute of the LOG_ARCHIVE_CONFIG parameterand restart the standby database instance before further REDO log file archivals occur.

ORA-16066: remote archival disabled
Cause: An archive log destination parameter has specified a remote destination with the SERVICE keyword. Remote archival of REDO log files has been disabled for this database. The associated archive log destination has been disabled.
Action: If appropriate change the archive log parameter to specify a local destination with the LOCATION keyword or (if appropriate) set the REMOTE_ARCHIVE_ENABLE parameter to TRUE, or enable the SEND attribute of the LOG_ARCHIVE_CONFIG parameter and restart the database instance before further REDO log file archivals occur.

ORA-16067: activation identifier mismatch in archive log string
Cause: The activation identifier contained in the archive log file header does not match the activation identifier of the database being recovered. The indicated archive log cannot be applied to the database.
Action: Locate the appropriate archive log for the database.

ORA-16068: redo log file activation identifier mismatch
Cause: The activation identifier of the indicated redo log file does not match the activation identifier of the database.
Action: None

ORA-16069: Archive Log standby database activation identifier mismatch
Cause: The activation identifiers of the Primary and Standby database do not match. Remote archival of redo log files is not allowed to incompatible STANDBY database instances. This can occur when trying to apply an incorrect archive log to a standby database, or when trying to archive to a standby database that does not match the primary database.
Action: Take the necessary steps to create the required compatible STANDBY database before retrying the ARCHIVE LOG processing.

ORA-16070: parameter string contains an invalid REGISTER attribute value
Cause: The value for the specified LOG_ARCHIVE_DEST_n (n = 1...10) parameter contained a REGISTER attribute that specified an invalid file name template string. If specified, the REGISTER file name template string must indicate an O/S-specific file path name including thread and log sequence number substitution directives (%t, %T, %s, %S).
Action: Correct the value for the LOG_ARCHIVE_DEST_n parameter.

ORA-16071: dependency archived log file not found string
Cause: The specified archived log file was not found at the indicated standby destination.
Action: Verify the correctness of the dependency archived log file name template specified for the indicated standby destination against the actual dependency archived log file.

ORA-16072: a minimum of one standby database destination is required
Cause: No standby database archive log destinations were specified.
Action: Specify a standby archive log destination in the initialization parameter file.

ORA-16073: archiving must be enabled
Cause: Online log file archiving is disabled.
Action: Enable log file archiving.

ORA-16074: ARCH processes must be active
Cause: There are no active ARCH processes.
Action: It is required that at least one ARCH process be active.

ORA-16075: standby database destination mismatch
Cause: A standby database destination was specified that is not accessed by another instance.
Action: All database instances must access the same standby databases.

ORA-16076: unknown standby database destination
Cause: A standby database destination was specified that is not accessed by another instance.
Action: All database instances must access the same standby databases.

ORA-16078: media recovery disabled
Cause: The database is not in ARCHIVELOG mode.
Action: Place the database in ARCHIVELOG mode.

ORA-16079: standby archival not enabled
Cause: The standby database does not have archival enabled.
Action: In order to allow the standby database to access the standby log files, the ARCH process must be enabled and active.

ORA-16080: invalid LogMiner session string for APPLY
Cause: Logical standby apply engine was started with an invalid LogMiner session identifier.
Action: Fix the problem with the LogMiner session or create a new session.

ORA-16081: insufficient number of processes for APPLY
Cause: Logical standby apply engine was started with fewer processes available than needed.
Action: Increase the values of the initialization parameters PROCESSES and or the MAX_SERVERS parameter seen in the DBA_LOGSTDBY_PARAMETERS view.

ORA-16082: logical standby is not initialized correctly
Cause: Logical standby apply engine was started but it found inconsistencies in its metadata.
Action: Look in the trace file for more information.

ORA-16083: LogMiner session has not been created
Cause: Logical standby apply engine was started without creating a LogMiner session.
Action: Create a LogMiner session and restart the apply engine.

ORA-16084: an apply engine is already running
Cause: A logical standby apply engine was running when another was created.
Action: Shut down the previous apply engine before starting a new one.

ORA-16086: standby database does not contain available standby log files
Cause: The primary database is in "no data loss" mode, but the standby database does not contain any "standby log files".
Action: Add one or more standby log files to the standby database. This can be done while the standby database is mounted.

ORA-16087: graceful switchover requires standby or current control file
Cause: An attempt was made to perform a graceful switchover operation using a backup or clone control file.
Action: Convert the backup control file into a current control file prior to attempting a graceful switchover operation. A clone control file cannot be used for a graceful switchover operation.

ORA-16088: archive log has not been completely archived
Cause: An attempt was made to register an archive log that has not been completely archived. The specified archive log may be a "current" log file.
Action: Specify a completed archive log.

ORA-16089: archive log has already been registered
Cause: An attempt was made to register an archive log that already has a corresponding thread# and sequence# entry in the standby database control file. Duplicate information is not permitted.
Action: Use the V$ARCHIVED_LOG fixed view to verify the archive log information.

ORA-16090: archive log to be replaced not created by managed standby process
Cause: An attempt was made to replace an archive log entry that was not originally created by the managed standby operation.
Action: No user action required.

ORA-16091: dependent archive log destination already archived
Cause: An archive log destination contains a dependency to another archive log destination that has previously been archived.
Action: The parent archive log destination cannot be dependent on another archive log destination. Use the ALTER SYSTEM command to remove one of the dependency attributes.

ORA-16092: dependent archive log destination is not active
Cause: An archive log destination contains a dependency to another archive log destination that is not active"
Action: The child archive log destination cannot be dependent on another invalid archive log destination. Use the ALTER SYSTEM command to remove one of the dependency attributes.

ORA-16093: dependent archive log destination is not LGWR-enabled
Cause: An archive log destination contains a dependency to another archive log destination that is not enabled for the LGWR process"
Action: The child archive log destination cannot be dependent on another archive log destination not archived by the LGWR. Use the ALTER SYSTEM command to change the parent archive log to specify the LGWR process.

ORA-16094: database shutdown during archival operation
Cause: The database was shut down while an online log file archival was active.
Action: None required. The ARCH process is terminated.

ORA-16095: Dependent destination removal for inactivation
Cause: A dependent archive log destination was inactivated due to the parent archive log destination becoming inelligible for archival. This may be due to the parent destination being manually deferred by an application user.
Action: None required.

ORA-16098: inaccessible standby database forced shutdown to protect primary
Cause: No standby database archive log destinations remain accessible and the primary database is in "protected" no-data-loss mode.
Action: Specify an alternate standby archive log destination in the initialization parameter file.

ORA-16099: internal error
ORA-00600 occurred at standby database
Cause: The RFS process on the standby database received an internal error.
Action: Check the standby alert log and RFS trace files for more information.

ORA-16100: not a valid Logical Standby database
Cause: This database has not been completely configured as a Logical Standby database.
Action: Verify that the database is the intended Logical Standby database. Ensure that you already started logical standby apply with the ALTER DATABASE START LOGICAL APPLY INITIAL statement. See the Oracle8i SQL Reference manual for the statement syntax.

ORA-16101: a valid start SCN could not be found
Cause: An SCN from which to start could not be found.
Action: Register the first log file following the backup from which this database was generated. Using the ALTER DATABASE REGISTER LOGILE statement to register the database is recommended. Alternatively, you can provide a starting SCN value with this startement.

ORA-16102: remote information is not available on the specified primary
Cause: The new primary has not completed generating the necessary information for the standby to begin consuming its log stream.
Action: Verify that the database link provided references a system that is about to become a new primary. Wait a short time before retrying the command to allow the primary some time to generate the necessary information.

ORA-16103: Logical Standby apply must be stopped to allow this operation
Cause: Logical Standby is currently applying changes. The apply must complete or be stopped to allow the requested operation.
Action: Execute the ALTER DATABASE STOP LOGICAL STANDBY APPLY statement, then re-enter or respecify the operation.

ORA-16104: Invalid Logical Standby parameter
Cause: The specified parameter is not valid.
Action: Check spelling or refer to the DBMS_LOGSTDBY PL/SQL package documentation for the correct statement syntax.

ORA-16105: Logical Standby is already running in background
Cause: A Logical Standby apply operation is already running.
Action: None

ORA-16107: all log data from primary has been processed
Cause: On the primary system, the log stream has been ended by the ALTER DATABASE COMMIT TO SWITCHOVER TO LOGICAL STANDBY command.
Action: Issue one of the following commands to make this standby a primary or resume applying changes from a new primary. ALTER DATABASE COMMIT TO SWITCHOVER TO LOGICAL PRIMARY; ALTER DATABASE START LOGICAL STANDBY APPLY NEW PRIMARY dblink;

ORA-16108: database is no longer a standby database
Cause: The current database has already been made a primary database.
Action: Issue the following commands to make this primary a standby. ALTER DATABASE COMMIT TO SWITCHOVER TO LOGICAL STANDBY; ALTER DATABASE START LOGICAL STANDBY APPLY NEW PRIMARY dblink;

ORA-16109: failed to apply log data from previous primary
Cause: Log data from previous primary could not be completely applied.
Action: . Then, re-issue command.

ORA-16110: user procedure processing of logical standby apply DDL
Cause: A user provided stored procedure has been called to inspect a DDL statement prior to it being processed.
Action: No action necessary, this informational statement is provided to record user involvement in the processing of a statement. Additional information can be found in the DBA_LOGSTDBY_EVENTS and the DBA_LOGSTDBY_SKIP views.

ORA-16111: log mining and apply setting up
Cause: This logical standby process is setting up to begin processing changes.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16112: log mining and apply stopping
Cause: This logical standby process is cleaning up and stopping Logical Standby apply.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16113: applying change to table or sequence string
Cause: The process is applying changes to a specific schema object.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16114: applying DDL transaction with commit SCN string
Cause: The process is applying a DDL change that's committed at the given SCN.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16115: string\% of LogMiner dictionary loading is done
Cause: The process is loading dictionary information from the redo stream. This activity may take a few minutes.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16116: no work available
Cause: The process is idle waiting for additional changes to be made available.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16117: processing
Cause: The process is performing its primary function and is not waiting on any significant event.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16119: building transaction at SCN string
Cause: The transaction being committed at the given SCN is being prepared for apply.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16120: dependencies being computed for transaction at SCN string
Cause: The transaction committed at the given SCN is being analyzed for dependencies.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16121: applying transaction with commit SCN string
Cause: The transaction committed at the given SCN is being applied.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16122: applying large dml transaction at SCN string
Cause: A large transaction is being applied before the commit has been seen. The current redo being applied ends as the given SCN.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16123: transaction string string string is waiting for commit approval
Cause: The apply process is waiting for approval to commit a transaction. This transaction may depend on another or other synchronization activity may delay the committing of a transaction.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16124: transaction string string string is waiting on another transaction
Cause: The apply process is waiting to apply additional changes. This transaction likely depends on another.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16125: large transaction string string string is waiting for more data
Cause: The apply process is waiting until additional changes for a large transaction are retrieved from the log stream.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16126: loading table or sequence string
Cause: Information on the given table or sequence is being loaded into an in memory cache for future use.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16127: stalled waiting for additional transactions to be applied
Cause: This process is waiting for additional memory before continuing. Additional log information cannot be read into memory until more transactions have been applied to the database, thus freeing up additional memory.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes. If this message occurs often and changes are not being applied quickly, increase available SGA or the number of apply processes.

ORA-16128: User initiated stop apply successfully completed
Cause: Logical standby was shutdown in an orderly fashion.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16129: unsupported dml encountered
Cause: DML to tables in the SYS schema have been updated and are not part of a DDL operation. This may be due to some DBA activity or DML associated with a kernel PL/SQL request that Logical Standby does not yet support.
Action: Check the DBA_LOGSTDBY_EVENTS table for the name of the table being processed. Possibly use Log Miner to understand the transaction, and provide a compensating transaction on the standby system. Once complete, call DBMS_LOGSTDBY.SKIP_TRANSACTION with the associated transaction id, and resume apply.

ORA-16130: supplemental log information is missing from log stream
Cause: Supplemental logging is not enabled at the primary database.
Action: Issue the following command to enable supplemental logging. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY, UNIQUE INDEX) COLUMNS;

ORA-16131: An error occurred during a Terminal Recovery of the standby.
Cause: An error occurred during a Terminal Recovery of the standby.
Action: Check the standby alert log additional information.

ORA-16132: An error occurred during activation of the standby.
Cause: An error occurred during activation of the standby database following a Terminal Recovery.
Action: Check the standby alert log additional information.

ORA-16133: Datafile string has incorrect terminal recovery stamp.
Cause: After activation of a standby database following a terminal recovery (recovery of standby using current logs), recovery of a datafile from before the activation must have completed the same terminal recovery to avoid corruption.
Action: A backup of the datafile taken after the terminal recovery and before activating the standby must be used for recovery.

ORA-16134: invalid MANAGED recovery FINISH option
Cause: A mode other than NOWAIT follows the FINISH keyword in RECOVER MANAGED STANDBY DATABASE statement.
Action: Specify either nothing or NOWAIT following FINISH.

ORA-16135: Invalid LOG_ARCHIVE_CONFIG modification while in protected mode
Cause: The LOG_ARCHIVE_CONFIG parameter can not be modified while any RAC instance is open in either maximum protection or maximum availability mode. Also, the parameter can not be modified in such way that would cause all destinations to fail while in maximum protection mode.
Action: Make the modification before the database is opened by any instance.

ORA-16136: Managed Standby Recovery not active
Cause: An attempt was made to cancel a managed recovery session but no managed recovery session was active.
Action: No action is necessary.

ORA-16138: end of log stream not received from primary
Cause: The standby system has not received notification that the primary system log stream has been terminated. A graceful switchover is not possible.
Action: Verify that the primary log stream has been terminated. Ensure that the standby has applied all necessary redo from the primary system and, if appropriate, reissue the graceful switchover command.

ORA-16139: media recovery required
Cause: An error has occurred while performing a switchover.
Action: If you were switching a primary database to the standby role, the conversion was successful, but one or more errors occurred after the conversion completed. See the alert log for more information. You can proceed with switching the target standby database to the primary role, but you must address the errors reported at the old primary database before it can protect the new primary database. If you encountered this error while switching a physical standby database to the primary role, the switchover did not succeed because additional redo must be applied. Verify that redo apply is active and wait until the SWITCHOVER_STATUS column of the V$DATABASE dynamic performance view reports TO_PRIMARY or SESSIONS_ACTIVE before retrying the switchover.

ORA-16140: standby online logs have not been recovered
Cause: The standby database has online logs containing redo that has not been recovered. Activating the standby would lose redo contained in the online logs.
Action: To recover the standby online logs issue the following command: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH. Then re-issue the ALTER DATABASE ACTIVATE STANDBY DATABASE command. To activate the standby without recovering the online logs, issue the following command: ALTER DATABASE ACTIVATE STANDBY DATABASE SKIP STANDBY LOGFILE.

ORA-16143: RFS connections not allowed during or after terminal recovery
Cause: An attempt was made, by an RFS process, to access a standby online log file during or after a terminal recovery.
Action: The primary must not attempt to archive to the standby after a terminal recovery.

ORA-16145: archival for thread# string sequence# string in progress
Cause: The indicated archived log file is not available for recovery due to the fact that it is still being archived.
Action: Verify that archival of the indicated log file has completed and reissue the RECOVER STANDBY DATABASE command.

ORA-16146: standby destination control file enqueue unavailable
Cause: The target standby destination control file is currently unavailable to the Remote File Server (RFS) process. This indicates that the target destination is the primary database itself.
Action: Check for and eliminate the standby destination archive log parameter in question.

ORA-16147: standby database referenced by multiple archive log destinations
Cause: Multiple archive log destinations reference the same standby database, using different service names. This is not allowed.
Action: Remove one of the duplicate archive log destinations.

ORA-16148: user requested expiration of managed recovery operation
Cause: The managed standby database recovery operation has been canceled per user specified EXPIRE option of the RECOVER MANAGED STANDBY DATABASE statement.
Action: No action is required.

ORA-16150: FINISH recovery performed on another, older standby database
Cause: An archive log containing a FINISH recovery indicator was received by a standby database that has received archive logs in the future of the received archive log. Because of the possibility that these future archive logs have been applied to this standby database, the received archive log must be rejected.
Action: No action is required.

ORA-16151: Managed Standby Recovery not available
Cause: The attempted operation failed because of a pending CANCEL of the managed standby recovery operation.
Action: Wait for the managed standby recovery session to end. Then retry the operation.

ORA-16152: standby database is in 'no-data-loss' protected mode
Cause: The attempted database operation is not allowed while the standby database is in 'no-data-loss' protected mode.
Action: Verify that the attempted database operation is warranted, ALTER DATABASE SET STANDBY DATABASE UNPROTECTED and reissue the statement.

ORA-16154: suspect attribute: string
Cause: Use of the indicated attribute is illegal in the given context.
Action: Make the appropriate changes and reissue the statement.

ORA-16156: LGWR archive log dependency not allowed if database is standby protected
Cause: The use of a LGWR archive log dependency is not allowed when the primary is protected by a standby database, as this requires use of the standby redo log files.
Action: Remove the LGWR archive log dependency and use normal LGWR archival instead.

ORA-16157: media recovery not allowed following successful FINISH recovery
Cause: A RECOVER MANAGED STANDBY DATABASE FINISH command has previously completed successfully. Another media recovery is not allowed.
Action: Issue one of these operations following a FINISH recocvery: ALTER DATABASE OPEN READ ONLY or ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY.

ORA-16159: Cannot change protected standby destination attributes
Cause: An attempt was made to change the LGWR/ARCH or SYNC/ASYNC attributes for a destination that is participating in the standby protection mode of the database.
Action: No action is required.

ORA-16160: Cannot change protected standby database configuration
Cause: An attempt was made to change the standby database configuration when the primary database is in standby protected mode.
Action: The standby database must be added to the configuration before the primary database is opened.

ORA-16161: Cannot mix standby and online redo log file members for group string
Cause: An attempt was made to add a log file member that does not match the other member types. This problem typically occurs when adding a standby log file member to an online redo logfile group, or adding an online redo log file member to a standby redo log file group.
Action: Verify the log file group type using the TYPE column of the V$LOG fixed view.

ORA-16162: Cannot add new standby databases to protected configuration
Cause: An attempt was made to enable a new standby database destination when the primary database is in standby protected mode.
Action: The standby database must be added to the configuration before the primary database is opened.

ORA-16163: LGWR network server host attach error
Cause: The LGWR network server could not attach to remote host
Action: The alert log contains more problem-specific information

ORA-16164: LGWR network server host detach error
Cause: The LGWR network server could not detach from remote host
Action: The alert log contains more problem-specific information

ORA-16165: LGWR failed to hear from network server
Cause: The LGWR lost its connection to the network server
Action: The alert log contains more problem-specific information

ORA-16166: LGWR network server failed to send remote message
Cause: The LGWR network server could not communicate with the remote host
Action: The alert log contains more problem-specific information

ORA-16167: LGWR network server could not switch to non-blocking mode
Cause: The LGWR network server could not switch to non-blocking mode
Action: The alert log contains more problem-specific information

ORA-16168: LGWR network server could not switch to blocking mode
Cause: The LGWR network server could not switch to blocking mode
Action: The alert log contains more problem-specific information

ORA-16169: LGWR network server invalid parameters
Cause: The LGWR network server could not switch to blocking mode
Action: The alert log contains more problem-specific information

ORA-16170: Terminal recovery may have left the database in an inconsistent state
Cause: When terminal recovery is invoked in a standby database without synchronous log shipping, in the rare case of the recovery session being in an unrecoverable state, terminal recovery cannot bring the standby database to a consistent SCN boundary if the primary database continues to have redo thread(s) open.
Action: Continue standby recovery with additional log shipping from primary.

ORA-16171: RECOVER...FINISH not allowed due to gap for thr string, seq string-string
Cause: See alert log for more details
Action: Copy missing archived logs from primary or another standby. Register the logs and re-issue the RECOVER...FINISH command. If the logs are not available, issue the ALTER DATABASE RECOVER MANAGED STANDBY SKIP command to ignore the standby redo log files.

ORA-16172: archive logs detected beyond Terminal End-Of-Redo
Cause: An attempt to archive a Terminal End-Of-Redo archive log to a remote destination failed due the existence, at the remote site, of archive logs containing REDO in the future of the Terminal EOR.
Action: None

ORA-16173: incompatible archival network connections active
Cause: One of two situations can cause this error: 1) An attempt to start a Terminal Incomplete Recovery operation failed due to an active Remote File Server process detected. 2) An attempt to archive a Terminal End-Of-Redo archive log to a remote destination failed due to an active Remote File Server process at the remote site. An active Remote File Server (RFS) process implies connectivity with the primary database which may indicate that a Terminal Incomplete Recovery operation is not warrented.
Action: Verify the Managed Standby environment and re-evaluate the necessity of a Terminal Incomplete Recovery operation.

ORA-16174: user requested thread/sequence termination of managed recovery
Cause: The managed standby database recovery operation has been terminated per user specified THROUGH THREAD/SEQUENCE option of the RECOVER MANAGED STANDBY DATABASE statement.
Action: No action is required.

ORA-16175: cannot shut down database when media recovery is active
Cause: An attempt was made to shut down a standby database while media recovery was active.
Action: Cancel media recovery to proceed with the shutdown.

ORA-16176: background dictionary build cannot be running
Cause: The background process dedicated to dictionary build is active.
Action: wait and try it later.

ORA-16177: media recovery is not required
Cause: The THROUGH LAST SWITCHOVER clause of the ALTER DATABASE RECOVER MANAGED STANDBY DATABASE was specified and the database has been recovered to the most recent End-Of-Redo marker. All known archived logs have been applied. Managed recovery is not required.
Action: No action is necessary. The standby database may be activated as a new primary or may continue as a standby.

ORA-16178: Cannot specify remote destinations in archivelog manual mode
Cause: The database is operating in ARCHIVELOG MANUAL mode. Remote archivelog destinations are not allowed in this mode.
Action: Use the ALTER DATABASE ARCHIVELOG command to place the database in automatic archivelog mode, or defer the archivelog destinations that specify the SERVICE= attribute.

ORA-16179: incremental changes to "string" not allowed with SPFILE
Cause: Incremental changes to a log_archive_dest_n parameter cannot be made when using an SPFILE.
Action: Specify either LOCATION or SERVICE plus all other attributes to be set in one ALTER SYSTEM/SESSION SET command.

ORA-16180: number of processes specified is too large
Cause: The number of server processes available for Logical Standby is currently limited to 1024 LogMiner processes and 1024 apply processes or a total of 2048.
Action: Retry with a lower value.

ORA-16181: SGA specified for Logical Standby is too large
Cause: MAX_SGA is larger than the larger of initialization parameters SHARED_POOL_SIZE and SGA_TARGET.
Action: Specify the value of MAX_SGA to be less than the maximum of SHARED_POOL_SIZE and SGA_TARGET. Likely only 75% or lower.

ORA-16182: Internal error on internal channel during remote archival
Cause: An internal error was encountered on the internal channel between LGWR and Network Server.
Action: No action is required, as an attempt will be made to re-archive the file that had this failure during archival.

ORA-16184: DB_UNIQUE_NAME string hashes to the same value as DB_UNIQUE_NAME string
Cause: The internal hash value generated for one DB_UNIQUE_NAME collided with the hash value of another DB_UNIQUE_NAME.
Action: Slightly modify one of the DB_UNIQUE_NAMEs so it hashes to a different value.

ORA-16185: REMOTE_ARCHIVE_ENABLE and LOG_ARCHIVE_CONFIG mutually exclusive
Cause: Both the REMOTE_ARCHIVE_ENABLE and LOG_ARCHIVE_CONFIG parameters are defined in the initialization file and they are mutually exclusive.
Action: The REMOTE_ARCHIVE_ENABLE parameter has been made obsolete. Use only the LOG_ARCHIVE_CONFIG parameter.

ORA-16186: Modifying LOG_ARCHIVE_CONFIG requires SID='*' qualifier
Cause: The setting for the LOG_ARCHIVE_CONFIG parameter must be exactly the same on all RAC instances so the SID='*' qualifier is required.
Action: Re-enter the command using the SID='*' qualifier.

ORA-16187: LOG_ARCHIVE_CONFIG contains duplicate, conflicting or invalid attributes
Cause: The LOG_ARCHIVE_CONFIG parameter was specified with duplicate, conflicting or invalid attributes.
Action: Check the documentation regarding the correct specification of the LOG_ARCHIVE_CONFIG parameter.

ORA-16188: LOG_ARCHIVE_CONFIG settings inconsistent with previously started instance
Cause: The settings for the LOG_ARCHIVE_CONFIG parameter are inconsistent with the settings of a previously started instance. The settings for this parameter must be exactly the same for all instances.
Action: Make sure all instances use the exact same LOG_ARCHIVE_CONFIG settings.

ORA-16191: Primary log shipping client not logged on standby
Cause: An attempt to ship redo to standby without logging on to standby or with invalid user credentials.
Action: Check that primary and standby are using password files and that both primary and standby have the same SYS password. Restart primary and/or standby after ensuring that password file is accessible and REMOTE_LOGIN_PASSWORDFILE initialization parameter is set to SHARED or EXCLUSIVE.

ORA-16192: Primary and standby network integrity mismatch
Cause: Standby wants sqlnet network integrity for redo shipment which is not configured properly at the primary.
Action: Check sqlnet.ora documentation regarding how to setup network integrity and set it up identically on both primary and standby. Restart primary and/or standby.

ORA-16193: Primary and standby network encryption mismatch
Cause: Standby wants sqlnet network encryption for redo shipment which is not configured properly at the primary.
Action: Check sqlnet.ora documentation regarding how to setup network encryption and set it up identically on both primary and standby. Restart primary and/or standby.

ORA-16194: Modifying DB_UNIQUE_NAME requires SID='*' qualifier
Cause: The setting for the DB_UNIQUE_NAME parameter must be exactly the same on all RAC instances so the SID='*' qualifier is required.
Action: Re-enter the command using the SID='*' qualifier.

ORA-16195: DG_CONFIG requires DB_UNIQUE_NAME be explicitly defined
Cause: The DG_CONFIG attribute of the LOG_ARCHIVE_CONFIG parameter can only be used if the DB_UNIQUE_NAME parameter has been explicitly defined.
Action: Explicitly define a valid DB_UNIQUE_NAME.

ORA-16196: database has been previously opened and closed
Cause: The instance has already opened and closed the database, which is allowed only once in its lifetime.
Action: Shut down the instance.

ORA-16197: Invalid DB_UNIQUE_NAME parameter specification
Cause: The DB_UNIQUE_NAME parameter has an invalid specification. The DB_UNIQUE_NAME parameter has a maximum length of 30 characters and the only characters allowed are alpha-numeric characters and "_", "$" and "#".
Action: Check the documentation and re-enter the parameter.

ORA-16198: Timeout incurred on internal channel during remote archival
Cause: A timeout was incurred during remote archival.
Action: No action is required, as an attempt will be made to re-archive the file that had this failure during archival.

ORA-16199: Terminal recovery failed to recover to a consistent point
Cause: See alert log for more details
Action: Try to resolve the problem. Retry terminal recovery. If the problem occurs repeatedly and cannot be resolved, call Oracle support.

ORA-16200: Skip procedure requested to skip statement
Cause: Logical standby called a skip procedure that requested for a particular statement not to be applied.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16201: Skip procedure requested to apply statement
Cause: Logical standby called a skip procedure that requested for a particular statement to be applied.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16202: Skip procedure requested to replace statement
Cause: Logical standby called a skip procedure that requested for a particular statement to be replaced with a new statement.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16203: Unable to interpret skip procedure return values
Cause: The skip procedure returned conflicting or invalid values.
Action: Ensure that the new_statement output parameter is non-NULL when returning DBMS_LOGSTDBY.SKIP_ACTION_REPLACE and NULL otherwise. Also ensure SKIP_ACTION is specified correctly.

ORA-16204: DDL successfully applied
Cause: A DDL statement has successfully commited on the logical standby database.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16205: DDL skipped due to skip setting
Cause: A setting in the logical standby skip table indicates that this type of DDL should always be skipped.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16206: database already configured as Logical Standby database
Cause: This database has been previously configured as a Logical Standby database. A Logical Standby database is not capable of processing the requested operation.
Action: Ensure that you entered the command on the correct database as this database is a Logical Standby and is not capable of servicing the request.

ORA-16207: Logical standby dictionary build not permitted.
Cause: A dictionary build is currently in progress. Only one build can be active at a time.
Action: Wait for the active build to complete before invoking a new build.

ORA-16208: Logical standby dictionary build failed to start.
Cause: Failure to start the logical standby dictionary build process (LSP1)
Action: Check the accompanying messages, and the background process trace file. Correct the problem mentioned in the messages. Then shut down and restart the instance. If the trace file mentions any other background process messages, check the trace file for the mentioned process until the root message is found.

ORA-16209: Logical standby dictionary build failed to complete.
Cause: The logical standby dictionary build process terminated abnormally.
Action: Check the accompanying messages, and the background process trace file. Correct the problem mentioned in the messages. Then shut down and restart the instance. If the trace file mentions any other background process messages, check the trace file for the mentioned process until the root message is found.

ORA-16210: Logical standby coordinator process terminated with error
Cause: The logical standby coordinator process terminated abnormally.
Action: Check the accompanying messages, and the background process trace file. Correct the problem mentioned in the messages. Then shut down and restart the instance. If the trace file mentions any other background process messages, check the trace file for the mentioned process until the root message is found.

ORA-16211: unsupported record found in the archived redo log
Cause: Log apply services encountered a record in the archived redo log that could not be interpreted.
Action: 1. Use DBMS_LOGSTDBY.INSTANTIATE_TABLE to re-create the table on the standby database or simply drop the table if it's unimportant.
2. ALTER DATABASE START LOGICAL STANDBY APPLY;
3. Examine the current_scn column in the DBA_LOGSTDBY_EVENTS view to determine which log file contains the unsupported record.
4. Provide the log file to Oracle Support Services.

ORA-16212: number of processes specified for SQL Apply is too great
Cause: Logical standby apply engine was started with more processes requested than are available.
Action: Adjust the values of the initialization parameters PROCESSES or the MAX_SERVERS parameter seen in the DBA_LOGSTDBY_PARAMETERS view. If you did not specify MAX_SERVERS, but instead specified PREPARE_SERVERS and APPLY_SERVERS through the dbms_logstdby.apply_set procedure, you will need to decrease either one or both of them.

ORA-16213: ddl encountered, stopping apply engine
Cause: stop_on_ddl callout specified and DDL was encountered.
Action: Either disable stop_on_ddl callout or remove DDL.

ORA-16214: apply stalled for apply delay
Cause: A delay has been specified on the primary database for this destination.
Action: Either turn off the delay on the primary or use DBMS_LOGSTDBY.APPLY_UNSET('APPLY_DELAY'); to override.

ORA-16215: history metadata inconsistency
Cause: internal error.
Action: This is an internal error. Contact Oracle support.

ORA-16216: Log stream sequence error
Cause: The log stream being processed did not follow the last processed stream.
Action: If the database is in an active configuration, issue an ALTER DATABASE START LOGICAL STANDBY APPLY NEW PRIMARY command to synchronize log stream data with the current primary database. If the database is not in an active configuration, manually add the next dictionary-begin logfile that followed the previous log stream.

ORA-16217: prepare to switchover has not completed
Cause: An ALTER DATABASE PREPARE TO SWITCHOVER command was issued, but the prepare activity did not complete.
Action: Verify that the standby was prepared properly. You may cancel the prepare and perform an unprepared switchover which requires a database link to complete. Or reissue the prepare operation on the standby.

ORA-16218: This database is already preparing to switch over.
Cause: The database was already preparing to switch over and was not able to accomodate another prepare attempt.
Action: Cancel the current prepare attempt with the ALTER DATABASE PREPARE TO SWITCHOVER CANCEL command, then reissue the prepare request.

ORA-16219: This database is not preparing to switch over.
Cause: The database was not preparing to switch over. Therefore, it was not possible to cancel the SWITCHOVER command.
Action: Preparing for the SWITCHOVER command can be accomplished with the ALTER DATABASE PREPARE TO SWITCHOVER command.

ORA-16220: no failed transaction found
Cause: No failed transaction was found.
Action: Retry the ALTER DATABASE START LOGICAL STANDBY APPLY command without the SKIP FAILED TRANSACTION option.

ORA-16221: history table synchronization error
Cause: internal error.
Action: This is an internal error. Contact Oracle support.

ORA-16222: automatic Logical Standby retry of last action
Cause: A failure occurred while running Logical Standby apply. A new attempt is automatically being made by Logical Standby apply.
Action: No action is necessary. This informational statement is provided to record the event for diagnostic purposes.

ORA-16223: DDL skipped, unsupported in current version
Cause: The given DDL statement was not supported in the current version of Logical Standby and was skipped.
Action: No action is necessary. This informational statement is provided to record the event for diagnostic purposes.

ORA-16224: Database Guard is enabled
Cause: Operation could not be performed because database guard is enabled
Action: Verify operation is correct and disable database guard

ORA-16225: Missing LogMiner session name for Streams
Cause: An attempt was made to register the log file for Streams without a specified LogMiner session name.
Action: Specify a valid LogMiner session name to which the log file will be registered.

ORA-16226: DDL skipped due to lack of support
Cause: Logical Standby does not support this type of DDL in this version, so the DDL is skipped.
Action: The DBA may apply the DDL explicitly at a later time or a procedure to handle this type of DDL can be created. see DBMS_LOGSTDBY.SKIP procedure for details.

ORA-16227: DDL skipped due to missing object
Cause: A table or other database object upon which this DDL depends is not defined on the Logical Standby database.
Action: No action is necessary, this infomational statement is provided to record the event for diagnostic purposes.

ORA-16228: Insufficient recovery for logical standby
Cause: Insufficient amount of recovery was run for logical standby instantiation.
Action: Continue to recover the database using ALTER DATABASE RECOVER MANAGED STANDBY DATABASE.

ORA-16229: PDML child string string string for parent string string string cannot be skipped.
Cause: A request was made to skip a parallel DML child transaction id. This is not supported.
Action: Using the DBMS_LOGSTDBY.UNSKIP_TRANSACTION procedure, remove the child transaction id, then specify the parent transaction id using DBMS_LOGSTDBY.SKIP_TRANSACTION if appropriate.

ORA-16230: committing transaction string string string
Cause: Logical Standby apply was committing changes for the given transaction.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16232: adding Logical Standby skip entry for table string.string
Cause: Table was previously unsupported due to datatype or storage attribute definitions. Table is now capable of being supported.
Action: To have Logical Standby maintain the table, import that table directly from the primary.

ORA-16233: The table string.string is unsupported now
Cause: Table was previously supported but now is unsupported due to altered datatype or storage attribute definitions.
Action: None

ORA-16234: restarting to reset Logical Standby apply
Cause: Logical Standby encountered a work load that required a restart to properly reschedule.
Action: No action necessary. This informational statement is provided to record the event for diagnostic purposes.

ORA-16235: DDL skipped because import has occurred
Cause: An object was exported from the primary database and imported into the Logical Standby database. This DDL occurred before the export.
Action: No action necessary. This informational statement is provided to record the event for diagnostic purposes.

ORA-16236: Logical Standby metadata operation in progress
Cause: The requested operation failed because a Logical Standby metadata operation, such as DBMS_LOGSTDBY.SET_TABLESPACE or DBMS_LOGSTDBY.INSTANTIATE_TABLE, has not finished.
Action: Wait for the Logical Standby metadata operation to finish, then re-enter or respecify the operation.

ORA-16237: SGA specified for Logical Standby is too small
Cause: MAX_SGA must be at least 10 Megabytes for proper functioning of Logical Standby.
Action: Specify the value of MAX_SGA to be greater than or equal to 10Mb. Alternatively, increase the shared_pool_size/sga_target so that 1/4 of it will amount to 10 Megabytes.

ORA-16238: attempt to use version 9 log
Cause: Version 9 log files are not supported.
Action: Use log files of a supported version.

ORA-16239: IMMEDIATE option not available without standby redo logs
Cause: The IMMEDIATE option cannot be used without standby redo logs.
Action: Do not specify the IMMEDIATE option unless standby redo logs are being used.

ORA-16240: Waiting for logfile (thread# string, sequence# string)
Cause: Reader process is idle waiting for additional logfile to be available.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16241: Waiting for gap logfile (thread# string, sequence# string)
Cause: Reader process is idle waiting for the logfile to fill the log sequence gap.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16242: Processing logfile (thread# string, sequence# string)
Cause: Reader process is processing the logfile.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16243: paging out string bytes of memory to disk
Cause: Builder process is paging out momery to free up space in lcr cache.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16246: User initiated abort apply successfully completed
Cause: SQL Apply was stopped using the abort option.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16247: DDL skipped on internal schema
Cause: Logical Standby ignores DDLs on internal schemas such as SYS and SYSTEM. For a complete list of internal schemas ignored by Logical Standby perform the following query: SELECT owner FROM dba_logstdby_skip WHERE statement_opt = 'INTERNAL SCHEMA'.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16248: RFS connections not permitted during Terminal Apply
Cause: Writes by RFS are not permitted while Logical Standby is performing Terminal Apply.
Action: Permit any outstanding Logical Standby operations to complete.

ORA-16249: Terminal apply failed to complete during failover
Cause: The logical standby coordinator process terminated abnormally."
Action: Examine the DBA_LOGSTDBY_EVENTS view for the reason behind the abnormal shutdown, and resolve accordingly. Once the problem has been rectified, reissue the ALTER DATABASE ACTIVATE LOGICAL STANDBY DATABASE command to complete the failover.

ORA-16250: Failed to acquire starting scn of new log stream
Cause: The starting SCN for the new log stream could not be determined.
Action: Please reissue the ACTIVATE LOGICAL STANDBY DATABASE command.

ORA-16251: LSP1 Background Build not permitted
Cause: The LSP1 background process is not permitted to start because it had previously been attempted.
Action: This is an internal error. Contact Oracle support.

ORA-16252: Rebuild operation not permitted
Cause: The REBUILD operation is not permitted.
Action: Only on a primary database that has failed to complete the LogMiner dictionary build may the REBUILD operation take place. Reissue the ACTIVATE LOGICAL STANDBY DATABASE command if it previously failed to complete.

ORA-16253: Logical Standby cannot start due to incomplete terminal apply
Cause: A previous ACTIVATE of the logical standby failed to complete.
Action: Reissue the ALTER DATABASE ACTIVATE LOGICAL STANDBY DATABASE FINISH APPLY command.

ORA-16254: change db_name to string in the client-side parameter file (pfile)
Cause: An ALTER DATABASE RECOVER TO LOGICAL STANDBY new-dbname command was successfully executed without a server parameter file (spfile).
Action: The client-side parameter file must be edited so that db_name is set to the given name before mounting the database again.

ORA-16255: Log Auto Delete conflicts with another LogMiner session
Cause: Log Auto Delete cannot be on while another LogMiner session is running on the same database.
Action: Start Logical Standby without Log Auto Delete or destroy other LogMiner sessions first.

ORA-16256: Failure to complete standby redo logfile archival after failover
Cause: The standby redo logfiles processed during the failover of a logical standby were not archived.
Action: Execute DBMS_LOGSTDBY.REBUILD to reattempt the archival.

ORA-16257: Switchover initiated stop apply successfully completed
Cause: SQL Apply was stopped because of a switchover.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16258: marking index unusable due to a constraint violation
Cause: A constraint violation occurred during the apply of a direct path load. The index will be marked unusable and the apply will be restarted.
Action: No action necessary. See alert log for index schema and name.

ORA-16259: Switchover to logical standby requires a log archive destination
Cause: A valid log archive destination was not found to which the local system could archive the EOR logfile. A minimum of one destination is required.
Action: Ensure all log archive destinations are properly configured and, if applicable, have network connectivity before re-issuing the ALTER DATABASE COMMIT TO SWITCHOVER TO LOGICAL STANDBY DDL operation.

ORA-16260: Waiting to replace partial or corrupt logfile (thread# string, sequence# string)
Cause: LogMiner Reader process reached end of a partial logfile or encountered a corrupted block. It is now waiting for the logfile to be recovered and re-registered.
Action: No action necessary. Once the FAL archiver replaces the logfile, standby will automatically restart to process the replaced file.

ORA-16261: Identification key mismatch for table "string"."string".
Cause: Internal error in SQL Apply.
Action: Contact Oracle Support Services.

ORA-16262: Invalid value specified for Logical Standby parameter
Cause: The value specified in APPLY_SET is invalid for the parameter.
Action: Specify correct parameter value. Please refer to documentation on DBMS_LOGSTDBY PL/SQL package for details.

ORA-16263: Dynamic parameters can only be set on SQL apply instance
Cause: Attempt to set a Logical standby dynamic parameter on an instacne other than where SQL apply coordinator is running.
Action: Connect to the instance where SQL apply coordinator is running and re-issue the statement.

ORA-16264: invalid value for PREPARE_SERVERS parameter
Cause: attempt to set PREPARE_SERVERS parameter to zero or to a value which would require MAX_SERVERS to be increased.
Action: set PREPARE_SERVERS parameter to a non zero value and or increase MAX_SERVERS parameter accordingly.

ORA-16265: Unsupported PL/SQL procedure encountered
Cause: Apply encountered an unsupported procedure from an Oracle supplied PL/SQL package that is otherwise supported
Action: Either add a skip rule for this procedure or manually apply the procedure and restart apply skipping the failed transaction Please refer to documentation on the PL/SQL package for details.

ORA-16266: Cannot instantiate a Logical Standby from another Logical Standby
Cause: An instantiation of a Logical Standby has been attempted for another database with the Logical Standby role, which is not supported.
Action: Instantiate a Logical Standby database only from a Primary Database.

ORA-16267: Cannot instantiate a Logical Standby during a switchover
Cause: An instantiation of a Logical Standby has been attempted for a primary database that is in the middle of a switchover.
Action: Execute ALTER DATABASE PREPARE TO SWITCHOVER CANCEL to cancel the switchover, and attempt the instantiation again.

ORA-16268: user procedure processing of logical standby apply PL/SQL
Cause: A user-provided stored procedure was called to inspect a PL/SQL statement prior to the statement being processed.
Action: No action necessary, this informational statement is provided to record user involvement in the processing of a statement. Additional information can be found in the DBA_LOGSTDBY_EVENTS and the DBA_LOGSTDBY_SKIP views.

ORA-16269: PL/SQL procedure skipped due to failure on primary database
Cause: Because the PL/SQL procedure failed when executed on the primary database, it could not be executed on the standby database.
Action: This informational statement is provided to record the event for diagnostic purposes. The failed PL/SQL procedure needs to be investigated to ensure it did not commit interesting data before it failed.

ORA-16270: PL/SQL procedure skipped due to unmaintained standby objects
Cause: Because the PL/SQL procedure manipulated objects not being maintained by the standby database, it was skipped.
Action: No action necessary. This informational statement is provided to record the event for diagnostic purposes.

ORA-16271: PL/SQL successfully applied
Cause: A PL/SQL procedure was successfully applied on the logical standby database.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16272: PL/SQL procedure skipped due to skip setting
Cause: A setting in the logical standby skip table indicated that this PL/SQL procedure should always be skipped.
Action: No action necessary, this informational statement is provided to record the event for diagnostic purposes.

ORA-16273: invalid value for APPLY_SERVERS parameter
Cause: attempt to set APPLY_SERVERS parameter to zero or to a value which would require MAX_SERVERS to be increased.
Action: set APPLY_SERVERS parameter to a non zero value or increase MAX_SERVERS parameter accordingly.

ORA-16274: failure to perform DDL on all RAC instances
Cause: One or more instances encountered an error while performing an operation.
Action: Ensure every instance in the RAC meets the requirements for the operation, and retry the operation.

ORA-16275: prior failed CTAS detected and pre-existing table dropped
Cause: During the processing of a CTAS operation, an existing empty table with the same name and attributes as the CTAS source table was found, and the table was dropped.
Action: No action is necessary. This informational statement is provided to record the event for diagnostic purposes.

ORA-16276: specified database link does not correspond to primary database
Cause: The database link specified to DBMS_LOGSTDBY.INSTANTIATE_TABLE did not link to the primary database for this logical standby database.
Action: Specify a database link that corresponds to the primary database for this logical standby database. The link should have privileges to read and lock the table being instantiated, as well as the SELECT_CATALOG_ROLE.

ORA-16277: specified table is not supported by logical standby database
Cause: A call was made to DBMS_LOGSTDBY.INSTANTIATE_TABLE to instantiate an unsupported table on the logical standby database. Tables with unsupported data types cannot be replicated to a logical standby database.
Action: Specify a table which is not listed in the DBA_LOGSTDBY_UNSUPPORTED_TABLE view.

ORA-16278: specified table has a multi-object skip rule defined
Cause: A table that is instantiated via DBMS_LOGSTDBY.INSTANTIATE_TABLE must not have any skip rules defined with wildcard characters.
Action: Remove or rewrite any skip rules defined for the specified table so that they no longer contain wildcard characters, or no longer affect the specified table.

ORA-16279: Supplied dblink must have CONNECT, RESOURCE, and SELECT_CATALOG_ROLE roles
Cause: A dblink was specified to DBMS_LOGSTDBY.INSTANTIATE_TABLE that lacked one or more of the CONNECT, RESOURCE, or SELECT_CATALOG_ROLE roles.
Action: Grant the CONNECT, RESOURCE, and SELECT_CATALOG_ROLE roles to the specified dblink, and retry the operation.

ORA-16280: cannot change master key on a logical standby database
Cause: An attempt was made to change the master key for transparent data encryption on a logical standby database.
Action: Set GUARD to NONE and reissue the command. This prevents you from replicating tables with encrypted columns from the primary database.

ORA-16281: missing identification key for table "string"."string".
Cause: No identification key was created for specified table.
Action: Create a primakey key or unique index for specified table.

ORA-16282: operation not permitted during rolling upgrade
Cause: An operation was attempted that is not supported during a rolling upgrade.
Action: Retry the operation upon completion of the upgrade.

ORA-16400: quota attributes are not allowed with DB_RECOVERY_FILE_DEST
Cause: Quota attributes for the destination parameters are not allowed when the parameter DB_RECOVERY_FILE_DEST is defined.
Action: No action is required.

ORA-16401: archivelog rejected by RFS
Cause: An attempt was made to re-archive an existing archivelog. This usually happens because either a multiple primary database or standby database(s) or both are trying to archive to this standby database.
Action: See alert log and trace file for more details. No action is necessary; this is an informational statement provided to record the event for diagnostic purposes.

ORA-16402: ONDEMAND archival requires FAL_CLIENT and FAL_SERVER support
Cause: The archivelog destination TRANSPORT=ONDEMAND attribute was specified on the primary database. Use of the TRANSPORT=ONDEMAND attributes requires that the corresponding standby database explicitly specify the FAL_CLIENT and FAL_SERVER initialization parameters.
Action: Make sure the FAL_CLIENT and FAL_SERVER initialization parameters are explicitly specified on the standby database that received this error.

ORA-16403: shutdown in progress - remote connection is not permitted
Cause: The SHUTDOWN command was used to shut down a running remote primary or standby ORACLE instance, so the LGWR or ARCH processes cannot connect to ORACLE.
Action: Wait for the remote instance to be restarted, or contact your DBA.

ORA-16406: Primary and standby database software version mismatch
Cause: The primary database and standby database Oracle software is not compatible.
Action: Install the correct Oracle software and try again.

ORA-16407: Standby database is in the future of the archive log
Cause: An archive log, from a different Redo Branch, was received by a standby database that has applied Redo in the future of Redo contained within the archive log. The standby database has rejected the REDO Branch archive logs.
Action: No action is required.

ORA-16408: Incompatible archival Redo Branch lineage
Cause: An archive log, from an incompatible different Redo Branch, was received by a standby database. The standby database has rejected the Redo Branch archive logs.
Action: No action is required.

ORA-16409: Archive log switchover reference number mismatch
Cause: The archive log switchover reference numbers of the Primary and Standby database do not match. Remote archival of redo log files is not allowed to incompatible STANDBY database instances.
Action: No action is required.

ORA-16411: ONDEMAND archival requires active managed recovery operation
Cause: The use of the ONDEMAND attribute for a physical standby database destination requires that the managed recovery operation be active prior to establishing the network connection.
Action: Start the managed recovery operation on the standby database.

ORA-16412: ONDEMAND archival requires active SQL apply operation
Cause: The use of the ONDEMAND attribute for a logical standby database destination requires that the SQL apply operation be active prior to establishing the network connection.
Action: Start the SQL apply operation on the standby database.

ORA-16413: Unsupported database type for ONDEMAND archivelog destinations
Cause: The use of the ONDEMAND attribute for a standby database destination is supported for only physical and logical standby database types. Cross-Instance-Archival and repository database types are not valid for the ONDEMAND attribute.
Action: Verify the database corresponding to the archivelog destination is either a physical standby database or a logical standby database.

ORA-16416: Switchover target is not synchronized with the primary
Cause: The switchover target incurred an error or has a gap at the time the switchover operation was attempted.
Action: Allow the switchover target to become synchronized and then re-attempt the switchover.

ORA-16417: Activation occurred after recovery from standby redo log files; a full database backup is required
Cause: Activation occurred after recovery from standby redo log files.
Action: Take a full database backup.

ORA-16419: Snapshot standby must be converted from physical standby
Cause: The database is not physical standby.
Action: Convert to physical standby and retry the operation.

ORA-16420: fast-start failover target cannot be converted to snapshot standby
Cause: The database chosen for conversion to a snapshot standby was the fast-start failover target standby database.
Action: Choose another physical standby database and retry the operation.

ORA-16424: Terminal recovery cannot start due to GAP on Physical Standby
Cause: Terminal Recovery failed because of gap behind the start point of standby recovery.
Action: Issue ALTER DATABASE ACTIVATE STANDBY DATABASE

ORA-16425: Terminal recovery branch string older than target branch string
Cause: Terminal Recovery failed because of new branch on Physical Standby.
Action: Issue real time apply recovery and see if recovery can proceed on the new branch by checking if logs on the new branch are applied by recovery. If so, issue another terminal recovery. Otherwise, issue ALTER DATABASE ACTIVATE STANDBY DATABASE

ORA-16426: log requested by recovery is not the correct log
Cause: Media recovery has selected an incorrect log
Action: Verify that the proper log has been properly registered and restart media recovery.

ORA-16427: Potential archive log gap too large to service
Cause: Standby destination is too far behind the primary database for automatic archive log gap detection/resolution to take place.
Action: Standby database should be recreated with a recent backup copy of the primary database.

ORA-16431: Cannot expand control file
Cause: More threads were added on the primary database after this standby control file was created.
Action: Shut down the standby database, either replace the control file with a new standby control file from primary database or change the COMPATIBLE parameter to 10.2.0 or above, and restart the standby database.

ORA-16432: inconsistent set of terminal logs detected
Cause: Media Recovery stopped because it detected an inconsistency between the first log in the new incarnation and the state of the previous incarnation. If this database is a bystander standby database, this is most likely because there was a failover operation, and this database applied terminal logs generated from that failover operation for some redo threads but applied corresponding logs from the old primary database of that failover operation for some other redo threads.
Action: Flashback or restore this database to before the standby_became_primary_scn of that failover operation and restart media recovery. The standby_became_primary_scn of the failover operation can be obtained from V$DATABASE on the new primary.

ORA-16433: The database has not been opened in read-write mode
Cause: When a physical standby database is converted to a read-write database or there was a failed open resetlogs attempt, the database should be opened in read-write mode to have correct file access information in the controlfile.
Action: Open the database in read-write mode and reissue the command.

ORA-16438: Switchover to primary cannot be executed at this time
Cause: ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY could not be executed because an incompatible operation such as RMAN restore or flashback was in progress. See the database alert log for details.
Action: Wait for the incompatible operation to complete. The files that have been flashed back or restored need recovery before you can reissue ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY statement. Start redo apply and verify that the SWITCHOVER_STATUS column of the V$DATABASE view reports TO_PRIMARY or SESSIONS_ACTIVE before retrying ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY.

ORA-16501: the Data Guard broker operation failed
Cause: The Data Guard broker operation failed.
Action: See accompanying messages for details.

ORA-16502: the Data Guard broker operation succeeded with warnings
Cause: The Data Guard broker operation succeeded with warnings.
Action: See accompanying messages for details.

ORA-16504: the Data Guard configuration already exists
Cause: A request to create a Data Guard configuration was made while connected to a database that is part of an existing configuration.
Action: To create a new configuration, the existing configuration must be deleted.

ORA-16505: site ID is invalid
Cause: The request contained an invalid site ID.
Action: Make the request again with a valid site ID.

ORA-16506: out of memory
Cause: Process exceeded private or shared memory limits.
Action: Check for memory leaks, increase system parameters and restart.

ORA-16507: unrecognized request identifier
Cause: The specified request identifier was not recognized by the Data Guard broker.
Action: Reissue the request using a valid request identifier.

ORA-16509: request timed out
Cause: The Data Guard broker timed out out the request.
Action: Check the Data Guard broker log file for more information. Ensure that the network connections between the databases are functioning properly and retry the request.

ORA-16513: maximum requests exceeded
Cause: The maximum number of requests that the broker can service
Action: Wait for the broker to complete processing the requests before issuing more requests.

ORA-16514: request was not found
Cause: An attempt was made to read a response but a matching request was not found.
Action: Verify request identifier is valid and that it references a previously issued request.

ORA-16516: current state is invalid for the attempted operation
Cause: The broker may have returned this error for either switchover operations or for database state change operations. If this error was returned for a switchover operation, the broker determined that either:
- The databases changing roles are shut down.
- The primary database is not shipping redo data.
- The standby database that will become the primary database is not applying redo data. If this error was returned for database state change operations, the database state specified was invalid.
Action: If this error is returned when attempting a switchover operation, make sure that:
- The databases changing roles are started.
- The primary database is shipping redo data.
- The standby database is applying redo data. If this error is returned when attempting a database state change operation, make sure a valid database state is specified.

ORA-16523: operation requires the client to connect to instance "string"
Cause: The switchover or failover operation required the client to connect to the apply instance of the target database.
Action: Connect to the indicated instance and reissue the SWITCHOVER or FAILOVER command.

ORA-16524: unsupported operation
Cause: A command or option was not supported in this release.
Action: Contact Oracle Support Services.

ORA-16525: the Data Guard broker is not yet available
Cause: The Data Guard broker process was either not yet started, was initializing, or failed to start.
Action: If the broker has not been started, set the DG_BROKER_START initialization parameter to true and allow the broker to finish initializing before making the request. If the broker failed to start, check the Data Guard log for possible errors. Otherwise, retry the operation.

ORA-16526: unable to allocate task element
Cause: The Data Guard broker was unable to allocate memory for a request.
Action: Increase the size of the SGA.

ORA-16527: unable to allocate broker SGA memory
Cause: The Data Guard broker was unable to allocate memory within the SGA.
Action: Increase the size of the SGA memory.

ORA-16528: unable to allocate PGA memory
Cause: There was insufficient space in PGA to allocate memory.
Action: Increase process virtual memory.

ORA-16530: invalid buffer or length
Cause: A NULL buffer or a length of zero was specified.
Action: Correct the command parameters and retry the command.

ORA-16532: Data Guard broker configuration does not exist
Cause: A broker operation was requested that required a broker configuration to already be created.
Action: Create a Data Guard broker configuration prior to performing other broker operations.

ORA-16534: no more requests accepted
Cause: The Data Guard broker returned this status because either:
- A failover operation was submitted or was in progress.
- A switchover operation was submitted or was in progress.
- An instance restart was pending for one or more databases.
Action: Wait until the operation is complete and reissue the request.

ORA-16535: CRS is preventing execution of a broker operation
Cause: The broker was unable to have CRS stop management of all of the instances of this database.
Action: Suspend CRS management of this database using the SRVCTL STOP DATABASE -D -O NONE command. Then reissue the broker request.

ORA-16541: database is not enabled
Cause: The database specified in the request was not enabled.
Action: Select an enabled database and reissue the request.

ORA-16544: modifying DG_BROKER_START requires SID='*' qualifier
Cause: The setting for the DG_BROKER_START parameter must be exactly the same on all RAC database instances. The SID='*' qualifier was required in the command.
Action: Reenter the command using the SID='*' qualifier.

ORA-16545: unable to get response
Cause: The Data Guard broker was unable to return the result of a previous request.
Action: Contact Oracle Support Services.

ORA-16546: missing or invalid value
Cause: The value of the request to return was not specified or was invalid.
Action: Specify the value of the response starting from one.

ORA-16547: cannot disable or delete the primary database
Cause: An attempt was made to disable broker management of the primary database or delete the primary database from the broker configuration while the configuration was enabled.
Action: If you wish to disable broker management of the primary database when the configuration is enabled, you must instead disable broker management of the entire broker configuration. If you wish to delete the primary database from the broker configuration while the configuration is enabled, you must instead delete the entire broker configuration.

ORA-16548: database not enabled
Cause: An attempt was made to modify or query a disabled database. This error is also returned on an attempt to enable, modify, or query a database that the broker has disabled because of a switchover or failover operation. The broker disables its management of a database when it detects that the database needs to be re-created because of a failover or switchover operation.
Action: If broker management of the database is disabled, enable it and reissue the request.

ORA-16549: invalid string
Cause: An invalid or NULL string value was specified.
Action: Correct command parameters and retry.

ORA-16550: truncated result
Cause: A string property value was truncated due to insufficient buffer size.
Action: Specify a larger receive buffer.

ORA-16551: short string copied
Cause: A string property value that did not fill the receive buffer was placed in the receive buffer.
Action: This is an informational message only.

ORA-16552: an error occurred when generating the CLIENT OPERATION table
Cause: An error occurred while Data Guard broker was generating the CLIENT OPERATION table.
Action: See the next error message for more detailed information. Execute the action described in the next error or contact Oracle Support Services.

ORA-16555: database is not active
Cause: An operation was attempted on a database that was not active. not active.
Action: Verify that the database is active and retry the operation.

ORA-16556: observer version mismatch
Cause: This version of the observer was incompatible with the version of the specified Oracle database server to which the observer had been connected. This observer client cannot be used to observe the specified Oracle server.
Action: Use a version of the observer that is compatible with the Oracle database server to be observed.

ORA-16557: database is already in use
Cause: An attempt was made to create a duplicate database in the broker configuration.
Action: Check the database to be added to ensure there are no duplicates.

ORA-16558: database specified for switchover is not a standby database
Cause: An attempt was made to switchover to a database that was not a standby database.
Action: Locate an enabled standby database and select that database as the target of the switchover.

ORA-16561: cannot remove an active instance
Cause: The instance to be removed was running.
Action: Shut down the instance and reissue the REMOVE command.

ORA-16568: cannot set property string
Cause: The specified property could not be modified because it was either a monitorable property or a property that did not exist.
Action: Retry the command with a valid configurable property.

ORA-16569: Data Guard configuration is not enabled
Cause: The requested operation required that broker management of the Data Guard configuration must be enabled.
Action: Enable the Data Guard configuration and reissue the request.

ORA-16570: database needs restart
Cause: The Data Guard broker operation required this database instance to be shut down and restarted.
Action: If DGMGRL or Enterprise Manager has not already done so, shutdown the Oracle instance and then restart it.

ORA-16571: Data Guard configuration file creation failure
Cause: The Data Guard broker was unable to create the configuration file on permanent storage.
Action: Verify space, permissions and file name as indicated by the DG_BROKER_CONFIG_FILE[1|2] initialization parameters and retry the operation.

ORA-16572: Data Guard configuration file not found
Cause: The Data Guard broker configuration file was either unavailable or did not exist.
Action: Verify that the configuration file was successfully created. If the DG_BROKER_CONFIG_FILE[1|2] initialization parameters were changed, ensure the file name on disk and the parameter value match, there is space on the device, and the proper permissions are granted.

ORA-16573: attempt to change or access configuration file for an enabled broker configuration
Cause: The operation was rejected because the Data Guard broker configuration file was in use. The attempted operation was unsafe while broker management of the configuration was enabled. For example:
- An attempt was made to alter the DG_BROKER_CONFIG_FILE[1|2] initialization parameters while the broker was running.
- Non-broker access (such as DBMS_FILE_TRANSFER) to the configuration files was attempted. See the alert log for additional information.
Action: Disable the broker configuration and shut down the Data Guard broker, then retry the operation. If the operation includes altering the DG_BROKER_CONFIG_FILE[1|2] initialization parameters, be sure that the new parameter values correctly specify the files at their expected location before reenabling broker management of the configuration.

ORA-16574: switchover disallowed when required databases are shut down
Cause: Switchover failed because either the primary database or the designated standby database were shut down.
Action: Ensure that the primary and standby databases are running and that primary database is shipping redo data to the designated standby database. Also ensure that that the designated standby database is applying the redo data received from the primary database.

ORA-16575: request terminated at broker discretion
Cause: This error was returned when the broker terminated a command because it was processing a failover command.
Action: Wait for failover to complete and then retry the command.

ORA-16576: failed to update Data Guard configuration file
Cause: A failure was encountered while the broker was updating the Data Guard broker configuration file on permanent storage.
Action: Verify space, permissions and file name as indicated by the DG_BROKER_CONFIG_FILE[1|2] initialization parameters.

ORA-16577: corruption detected in Data Guard configuration file
Cause: The Data Guard broker detected errors while loading the configuration file.
Action: Verify space, permissions and file name as indicated by the DG_BROKER_CONFIG_FILE[1|2] initialization parameters. Contact Oracle Support Services.

ORA-16578: failed to read Data Guard configuration file
Cause: A failure was encountered while the broker was reading the configuration file on permanent storage.
Action: Verify space, permissions and file name as indicated by the DG_BROKER_CONFIG_FILE[1|2] initialization parameters.

ORA-16582: cannot change instance-specific property
Cause: An attempt was made to change an instance-specific property for a database that had more than one instance.
Action: Retry the command and identify a specific instance whose property value is to be changed.

ORA-16586: cannot change database property with EDIT INSTANCE command
Cause: An attempt was made to change a database property using an EDIT INSTANCE command instead of an EDIT DATABASE command.
Action: Use an EDIT DATABASE command to change database properties.

ORA-16587: ambiguous object specified to Data Guard broker
Cause: An object was specified that the broker could not uniquely distinguish from other objects in the configuration.
Action: Try to further distinguish the object specified for the operation and reissue the command.

ORA-16589: Data Guard broker detected network transfer error
Cause: The Data Guard broker detected an error while transferring data from one database to another. This may happen when:
- the broker detects an inconsistency in the block count of configuration file when the file is transmitted between databases.
- the broker encountered an error when writing the configuration file.
Action: Contact Oracle Support Services.

ORA-16594: DMON background process is not running
Cause: The Data Guard broker background process, DMON, was not running.
Action: Check the Data Guard broker log and DMON process trace file to determine why the DMON process is not running.

ORA-16595: process string failed to terminate
Cause: The specified process did not terminate at the request of the Data Guard broker.
Action: Contact Oracle Support Services.

ORA-16596: database not part of the Data Guard broker configuration
Cause: The specified database is not in the Data Guard broker configuration.
Action: Retry the command with a database that is in the broker configuration.

ORA-16597: Data Guard broker detects two or more primary databases
Cause: The Data Guard broker detected two or more primary databases in the broker configuration and could not continue.
Action: Contact Oracle Support Services.

ORA-16598: Data Guard broker detected a mismatch in configuration
Cause: The Data Guard broker detected a significant mismatch while performing configuration membership validation between two or more databases in the broker configuration. This can occur when the primary database has stale broker configuration files.
Action: Contact Oracle Support Services.

ORA-16599: Data Guard broker detected a stale configuration
Cause: The Data Guard broker detected a stale configuration during initialization for this database.
Action: The broker will automatically resolve this situation once the primary database completes its initialization.

ORA-16600: not connected to target standby database for failover
Cause: The failover command failed because the client was not connected to the target standby database.
Action: Explicitly connect to the standby database to be failed over to and retry the failover command.

ORA-16602: database must be disabled to perform this operation
Cause: An attempt was made to edit a database property while the database was enabled.
Action: Disable the database and retry the command.

ORA-16603: Data Guard broker detected a mismatch in configuration ID
Cause: There was a mismatch in configuration unique ID. This could occur if the original configuration was re-created while this database was disconnected from the network or the same database was added to two different Data Guard broker configurations.
Action: Make sure the database belongs to only one broker configuration. Shut down the broker by setting the DG_BROKER_START initialization parameter to false. Then remove the Data Guard broker configuration files. Finally restart the broker by setting the DG_BROKER_START initialization parameter to true.

ORA-16606: unable to find property "string"
Cause: The specified property did not exist.
Action: Specify a valid property name and reissue the request.

ORA-16607: one or more databases have failed
Cause: A failure was detected for one or more databases in the Data Guard broker configuration.
Action: Locate the database(s) with a failure status and correct it.

ORA-16608: one or more databases have warnings
Cause: A warning was detected for one or more databases in the Data Guard broker configuration.
Action: Locate the database(s) with a warning status and correct it.

ORA-16609: database is being disabled
Cause: A command was attempted on a database that was being disabled. For example, attempting to reinstate the old primary database, the database that was the primary database prior to the most recent failover, before it was ready to be reinstated.
Action: Wait for the Data Guard broker to disable the database and then retry the command.

ORA-16610: command "string" in progress
Cause: The specified broker command was already running and the command issued could not be completed.
Action: Wait for the specified command to finish and then retry the command.

ORA-16611: command aborted at user request
Cause: The command was aborted at the user's request.
Action: No action required.

ORA-16612: string value too long for attribute "string"
Cause: The string value for the named attribute was too long.
Action: Specify a shorter string value.

ORA-16613: initialization in progress for database
Cause: A request was made to modify the Data Guard broker configuration before the Data Guard broker had completed initialization.
Action: Wait until the Data Guard broker has completed initialization before attempting to modify the broker configuration.

ORA-16614: Data Guard broker configuration is disabled
Cause: An attempt to enable a database failed because the Data Guard broker configuration was disabled.
Action: Enable the Data Guard broker configuration and issue the DGMGRL CLI SHOW CONFIGURATION command to see if there are any databases that are still disabled. If the database you tried to enable is still disabled, issue the DGMGRL CLI SHOW DATABASE command to check the status of the database. If the database status indicates that the database needs to be reinstated then issue the DGMGRL CLI REINSTATE DATABASE command to reinstate and enable the database. If the database does not require reinstatement then issue the DGMGRL CLI ENABLE DATABASE command to enable the database.

ORA-16617: unknown object identifier specified in request
Cause: Object identifier specified in the request was invalid or unknown.
Action: Verify that a valid object identifier is specified and reissue reissue the request.

ORA-16619: health check timed out
Cause: The standby database could not be reached during a routine health check.
Action: This typically indicates a network problem where the standby database is unable to respond to the primary database within a predefined time frame. Check the network connections between the primary and standby databases.

ORA-16620: one or more databases could not be reached for a delete operation
Cause: One or more standby databases could not be reached for either a DGMGRL CLI REMOVE DATABASE or a REMOVE CONFIGURATION command.
Action: This typically indicates a network problem where the standby database is unable to respond to the primary database. In the event of this situation, examine the primary database Data Guard broker log to determine which standby databases could not be reached. For each standby database not reached, connect to that database and shut down the broker by setting the initialization parameter, DG_BROKER_START, to false. After the broker has been shut down for the standby database, locate the Data Guard broker configuration files from the standby database DG_BROKER_CONFIG_FILE[1|2] initialization parameter values and delete them. Then restart the broker by setting DG_BROKER_START to true.

ORA-16621: database name for ADD DATABASE must be unique
Cause: An attempt was made to add a database to the broker configuration that already included a database with the specified name. The database names must be unique.
Action: Verify that a unique name is specified for the new database to be added. Also, the database name must match the DB_UNIQUE_NAME initialization parameter of the database.

ORA-16622: two or more broker database objects resolve to the same database
Cause: Multiple database objects referred to the same database.
Action: Examine the details of all databases in the broker configuration and verify that there are not two or more databases referring to the same database. If two or more database profiles in the broker configuration have the same value for the DGConnectIdentifier database property, either:
- Remove and re-add the erroneously defined database(s) to resolve the ambiguity.
- Ensure that the DGConnectIdentifier database property for each database allows the broker to properly connect to that database.

ORA-16623: database detected role change
Cause: A successful switchover or failover operation had been completed and was detected during database startup or broker health check. If this database was unavailable during a switchover or failover operation, it may not be a viable standby database for the new primary database and was disabled by the Data Guard broker.
Action: Connect to the new primary database and examine the broker configuration for databases that were disabled and that may require reinstatement or re-creation.

ORA-16624: broker protocol version mismatch detected
Cause: A network protocol version number mismatch was detected. This could happen if the databases in the broker configuration were not running the same version of Oracle. The broker would disable standby databases that were not running the same version of Oracle as the primary database if this situation was detected.
Action: Examine the version of Oracle installed on all databases in the broker configuration to ensure they are identical. Once all of the datbases in the broker configuration are running the same version of Oracle, reenable the standby databases that were disabled.

ORA-16625: cannot reach the database
Cause: The command could not be executed because the database required to complete the command was not reachable from the database where the command was issued. If the command modifies the configuration, the command must be processed by the copy of the broker running on an instance of the primary database.
Action: Check the network connections between all of the databases in the configuration. Alternatively, connect to a different database in the Data Guard broker configuration and retry the command. If an attempt was made to determine the status of a particular database in the configuration, connect to that database and get the current value of the StatusReport property for that database.

ORA-16626: failed to enable specified database
Cause: This status was returned when attempting to enable a standby database that:
- Could not locate itself in the broker configuration file.
- Failed to distinguish itself from two or more databases in the configuration file.
- Determined it missed a role change within the configuration.
Action: To correct the problem, try one of these actions:
- Confirm that the host and SID names for the database exactly match the values in the HOST_NAME and INSTANCE_NAME columns of V$INSTANCE.
- Confirm that there are not two or more databases with the same connect identifier. That is, multiple databases in the broker configuration should not reach the same database.
- If a failover had been performed and the old primary database has been re-created (or a standby database has been re-created), make sure the Data Guard broker configuration files have been removed for that database. Do NOT remove the configuration files that are in use by the new primary database.

ORA-16627: operation disallowed since no standby databases would remain to support protection mode
Cause: This status was returned because of one of the following:
- The broker rejected an attempt to change the overall configuration protection mode since it could not find any enabled standby databases that supported the proposed protection mode.
- The broker rejected an attempt to enable the configuration if it determined that there were no enabled standby databases that supported the overall protection mode.
- The broker rejected an attempt to disable or remove a database that, if disabled or deleted, would result in no remaining standby databases that could support the overall configuration protection mode.
- The broker rejected an attempt to switchover if doing so would violate the overall configuration protection mode.
- Performing automatic health check if the broker determined that no standby datbases supported the overall protection mode.
Action: - If changing the overall protection mode, confirm that at least one standby database satisfies the new protection mode.
- For enable failures, confirm that at least one standby database has a LogXptMode configurable property setting that supports the current overall protection mode.
- For delete and disable failures, confirm that at least one other standby database has a LogXptMode configurable property setting that supports the overall protection mode.
- For switchover failures that occur when the configuration is operating in maximum protection or maximum availability mode, confirm that at least one other standby database has its LogXptMode configurable property set to the value "SYNC". If the configuration contains a primary database and a single standby database and is operating in either maximum protection or maximum availability mode, ensure that the LogXptMode configurable property of the primary database is set to the value "SYNC". Since the old primary database will become the standby database after switchover completes, its LogXptMode configurable property setting must support the configuration protection mode.
- For health check error, confirm that at least one standby database has a LogXptMode configurable property setting that supports the current overall protection mode.

ORA-16628: broker protection mode inconsistent with the database setting
Cause: The Data Guard broker protection mode saved in the broker configuration file was inconsistent with the actual database setting.
Action: Reset the protection mode through the Data Guard broker.

ORA-16629: database reports a different protection level from the protection mode
Cause: The actual or current database protection level was different from the configured protection mode. This typically is caused by redo transport problems.
Action: Check the database alert logs and Data Guard broker logs for more details. Also, check the redo transport status. Ensure that one standby database supports the configured protection mode and that the network to that standby database is working properly.

ORA-16630: database property has been deprecated
Cause: The property that was specified in the command was deprecated.
Action: Check the broker documentation to identify a replacement property or SQL command for the deprecated property.

ORA-16631: operation requires shutdown of database or instance "string"
Cause: The Data Guard broker operation required a shutdown of the database or instance.
Action: If database or instance has not been shutdown by the DGMGRL CLI or Enterprise Manager, shutdown the database or instance manually.

ORA-16632: instance being added to database profile
Cause: The Data Guard broker determined that an instance successfully found its database profile within the broker configuration file, but lacked an instance-specific profile. The broker automatically created an instance-specific profile and associated the instance with its database profile.
Action: No user action is required. The broker will automatically associate the instance with its database profile and incorporate the instance into broker activity.

ORA-16633: the only instance of the database cannot be removed
Cause: The instance to be removed was the only instance of the corresponding database that was known to the broker.
Action: Remove the corresponding database object from the broker configuration instead of the individual instance object of the database.

ORA-16635: network connection failed during transmission
Cause: The Data Guard broker detected a connection failure to a remote database in the broker configuration. This failure happened in the middle of a transmission session. A transmission session usually requires more than one send operation for sending a large amount of data (for example, the broker configuration file) to the remote database.
Action: In most cases, no user action is required. The Data Guard broker always tries to resend the data. This error will be reported if the problem persists. This error indicates there are some problems with the network connection between broker managed databases. Further network troubleshooting should be done to identify and correct the actual problem.

ORA-16636: fast-start failover target standby in error state, cannot stop observer
Cause: A STOP OBSERVER operation could not be completed when fast-start failover was enabled because the target standby database could not participate in the STOP OBSERVER operation.
Action: Additional information about this failure is recorded in the Data Guard broker log file for the primary database. This information helps to identify the reason why the target standby database was unable to participate in the STOP OBSERVER operation. If the problem can be corrected by the information in the broker log file, retry the operation. Alternatively, fast-start failover may be forcibly disabled by connecting to the primary database and issuing the DISABLE FAST_START FAILOVER FORCE command from the DGMGRL CLI. Once fast-start failover has been forcibly disabled, the observer can be stopped regardless of the current state of the target standby database.

ORA-16637: an instance failed to access the Data Guard broker configuration
Cause: The broker could not access the broker configuration files on one or more database instances. This can happen when the DG_BROKER_CONFIG_FILE[1|2] initialization parameter values are not to the same set of file locations for a RAC database.
Action: Shut off the broker by setting the DG_BROKER_START initialization parameter to false. Then set the DG_BROKER_CONFIG_FILE1 and DG_BROKER_CONFIG_FILE2 initialization parameters to file locations that are shared by all instances of a RAC database. Finally, restart the broker by setting the DG_BROKER_START initialization parameter to true.

ORA-16638: could not get the instance status
Cause: The broker could not determine whether the specified instance was running.
Action: See the next error message in the error stack for more detailed information. If the situation described in the next error in the stack can be corrected, do so; otherwise, contact Oracle Support Services.

ORA-16639: specified instance inactive or currently unavailable
Cause: An attempt was made to perform an operation on an instance that was not running or was unavailable.
Action: Ensure that the instance specified in the operation is running and then retry the operation.

ORA-16640: CRS warns that multiple instances may still be running
Cause: The broker failed to have CRS stop instance monitoring and shut down all but one instance. CRS instance monitoring did stop, but CRS may not have been able to shut down all but one instance. The broker operation was canceled.
Action: Suspend CRS management of this database using SRVCTL STOP DATABASE -D -O NONE. Reissue the broker request.

ORA-16642: DB_UNIQUE_NAME mismatch
Cause: The expected DB_UNIQUE_NAME value did not match the actual DB_UNIQUE_NAME value for the database that the broker contacted using the connect identifier that was associated with that database.
Action: Verify that the connect identifier correctly connects to the intended database. Verify that the name of the database the broker expects to find by that connect identifier matches the actual DB_UNIQUE_NAME for that database.

ORA-16643: unable to determine location of broker configuration files
Cause: The Data Guard broker was unable to determine the location of its configuration files from the DG_BROKER_CONFIG_FILE[1|2] initialization parameters.
Action: Retry the operation and, if the error persists, contact Oracle Support Services.

ORA-16644: apply instance not available
Cause: The broker operation could not finish, because it requires a running apply instance for the standby database, and either there was no such instance designated for the standby database or the designated apply instance was not currently available.
Action: Start the designated apply instance or wait until the broker specifies an instance to be the apply instance and reissue the command.

ORA-16645: unexpected new instance interrupted current operation
Cause: A new instance unexpectedly joined the Data Guard configuration at a point when the current operation may proceed only if the set of known instances is not changing dynamically.
Action: Reissue the operation after the new instance has joined the Data Guard configuration.

ORA-16646: fast-start failover is disabled
Cause: The operation was not allowed because fast-start failover was disabled.
Action: Enable fast-start failover and retry the operation.

ORA-16647: could not start more than one observer
Cause: The observer could not start because there was another observer already observing the Data Guard configuration for which fast-start failover may have been enabled.
Action: Stop the running observer. Retry the operation.

ORA-16648: a new observer registered with identifier string
Cause: The observer was registered with the Data Guard broker and will begin observing the Data Guard configuration for conditions that warrant doing a fast-start failover.
Action: None

ORA-16649: possible failover to another database prevents this database being opened
Cause: An attempt to open the database was made either when a failover occurred or while fast-start failover was enabled and the fast-start failover status could not be evaluated.
Action: Check if a failover did occur. If fast-start failover is enabled, and a failover did not occur, ensure that connectivity exists between this database and either the observer or the target standby database. Then, try opening the database again.

ORA-16650: command incompatible when fast-start failover is enabled
Cause: An attempt was made to issue a command that is not permitted when fast-start failover is enabled. The command was not issued using the Data Guard broker.
Action: The command must be issued using the Data Guard broker.

ORA-16651: requirements not met for enabling fast-start failover
Cause: The attempt to enable fast-start failover could not be completed because one or more requirements were not met:
- The Data Guard configuration must be in either MaxAvailability or MaxPerformance protection mode.
- The LogXptMode property for both the primary database and the fast-start failover target standby database must be set to SYNC if the configuration protection mode is set to MaxAvailability mode.
- The LogXptMode property for both the primary database and the fast-start failover target standby database must be set to ASYNC if the configuration protection mode is set to MaxPerformance mode.
- The primary database and the fast-start failover target standby database must both have flashback enabled.
- No valid target standby database was specified in the primary database FastStartFailoverTarget property prior to the attempt to enable fast-start failover, and more than one standby database exists in the Data Guard configuration.
Action: Retry the command after correcting the issue:
- Set the Data Guard configuration to either MaxAvailability or MaxPerformance protection mode.
- Ensure that the LogXptMode property for both the primary database and the fast-start failover target standby database are set to SYNC if the configuration protection mode is set to MaxAvailability.
- Ensure that the LogXptMode property for both the primary database and the fast-start failover target standby database are set to ASYNC if the configuration protection mode is set to MaxPerformance.
- Ensure that both the primary database and the fast-start failover target standby database have flashback enabled.
- Set the primary database FastStartFailoverTarget property to the DB_UNIQUE_NAME value of the desired target standby database and the desired target standby database FastStartFailoverTarget property to the DB_UNIQUE_NAME value of the primary database.

ORA-16652: fast-start failover target standby database is disabled
Cause: The command to enable or disable fast-start failover could not be completed because Data Guard broker management of the fast-start failover target standby database is currently disabled.
Action: Enable broker management of the target standby database and reissue the command. If an attempt was made to disable fast-start failover when this error was reported, disable fast-start failover forcibly using the DGMGRL DISABLE FAST_START FAILOVER FORCE command. Consult the documentation for more information.

ORA-16653: failed to reinstate database
Cause: The Data Guard broker failed to reinstate the specified database because the REINSTATE command failed or because the database is already enabled.
Action: Additional information about this failure is recorded in the primary database or the specified database Data Guard broker log files. This information is helpful in determining how to proceed.

ORA-16654: fast-start failover is enabled
Cause: The attempted command was not allowed while fast-start failover was enabled:
- The FastStartFailoverTarget property may not be modified.
- The LogXptMode property for either the primary database or the fast-start failover target standby database may not be modified.
- The configuration's protection mode may not be modified.
- Neither the broker configuration nor the fast-start failover target standby database may be disabled using the DGMGRL CLI DISABLE command.
- Neither the broker configuration nor the fast-start failover target standby database may be removed using the DGMGRL CLI REMOVE command.
- The FAILOVER IMMEDIATE command is not allowed.
- The DG_BROKER_START initialization parameter may not be set to FALSE.
Action: Disable fast-start failover, using the FORCE option if required. Then retry the attempted command.

ORA-16655: specified target standby database invalid
Cause: The attempted command was not allowed because fast-start failover was enabled for this Data Guard configuration and the target standby database specified in the command differs from the standby database that was indicated by the FastStartFailoverTarget property associated with the current primary database.
Action: Retry the attempted command by specifying the standby database that is indicated by the FastStartFailoverTarget property that is associated with the current primary database. Alternatively, fast-start failover may be disabled. Then retry the command using the originally specified target standby database.

ORA-16656: Data Guard broker detected role change
Cause: The Data Guard broker detected a role during database startup or health check.
Action: Additional information about this failure is recorded in the Data Guard broker log files, one for the primary database and one for each standby database in the Data Guard configuration. This information is helpful in determining how best to proceed from this failure.

ORA-16657: reinstatement of database in progress
Cause: Reinstatement of this database was in progress.
Action: None

ORA-16658: unobserved fast-start failover configuration
Cause: The fast-start failover configuration was currently unobserved so failover was disallowed.
Action: Make sure the observer is running and has connectivity to both the primary and the target standby databases. Otherwise, disable fast-start failover to perform a failover in the absence of the observer process.

ORA-16659: failover operation in progress
Cause: A primary database that restarted contacted a standby database that is being failed over to.
Action: Shut down the primary database and wait for failover to complete on the standby database. Once failover is complete, restart the old primary database. If the failover occurred due to fast-start failover, restarting the primary database after failover is complete allows it to be automatically reinstated as a standby database to the new primary database.

ORA-16660: fast-start failover operation attempted in absence of a broker configuration
Cause: An attempt was made to enable or disable fast-start failover when connected to a standby database for which broker configuration details are currently unavailable. For instance, the standby database may currently require re-creation (or flashback reinstantiation) before it may respond to broker client commands.
Action: 1) An attempt to enable or disable (non-FORCE) fast-start failover at this standby database will be rejected until such time that the broker configuration details have been made available to that standby database from the primary database. This normally occurs when the standby database is successfully re-created or flashed back, and then reenabled at the primary database. 2) Use the FORCE option to override fast-start failover that has been enabled at the standby database even when the broker configuration details are currently unavailable to the standby database. In this case, this status message is only a warning. Note that fast-start failover is not formally disabled in the broker configuration. The effect of this command issued under these circumstances may or may not be permanent, depending upon when the primary and standby databases regain full communication between each other and if the state of fast-start failover has been altered at the primary database in the meantime.

ORA-16661: the standby database needs to be reinstated
Cause: A switchover or failover operation has caused this database to require reinstatement.
Action: Use the DGMGRL REINSTATE DATABASE command or Enterprise Manager to reinstate the database. If the target database has flashback enabled and it has sufficient flashback logs, the database will be reinstated as a standby database for the current primary database.

ORA-16662: network timeout when contacting a database
Cause: In response to the issued command, the Data Guard broker attempted to contact a database in the Data Guard configuration. That attempt failed because there was no response from that database after the period of time specified by the NetTimeout property for that database.
Action: Check the Data Guard broker log for the details of the failure. Fix the problem and try the command again.

ORA-16664: unable to receive the result from a database
Cause: During execution of a command, a database in the Data Guard broker configuration failed to return a result.
Action: Check Data Guard broker logs for the details of the failure. Fix any possible network problems and try the command again.

ORA-16665: timeout waiting for the result from a database
Cause: The Data Guard broker was forced to time out a network connection
Action: Check Data Guard broker logs for the details of the failure. Fix any possible network problems and reissue the command.

ORA-16666: unable to initiate fast-start failover on a standby database
Cause: The request to initiate a fast-start failover using DBMS_DG.INITIATE_FS_FAILOVER was made to a standby database. An application may only request that fast-start failover be initiated by calling DBMS_DG.INITIATE_FS_FAILOVER on a primary database.
Action: Call DBMS_DG.INITIATE_FS_FAILOVER on the primary database.

ORA-16667: request Data Guard broker client to reissue command
Cause: The Data Guard broker operation required the same command be issued again from the client.
Action: If DGMGRL or Enterprise Manager has not already done so, reissue the same command to the Data Guard broker manually.

ORA-16668: operation invalid on fast-start failover target database
Cause: The attempted command was not allowed on the fast-start failover target standby database when fast-start failover is currently enabled.
Action: Retry the attempted command on a database other than the fast-start failover target standby database. Alternatively, disable fast-start failover and reissue the same command to the fast-start failover target standby database.

ORA-16700: the standby database has diverged from the primary database
Cause: The primary database may have been flashed back or restored from a backup set and then reopened with the RESETLOGS option.
Action: Re-create the standby database from the primary database or flash back the standby database to the same point the primary database had been flashed back to.

ORA-16701: Data Guard broker command failed
Cause: Command to modify or query the database failed.
Action: Check the Data Guard broker log for the reason for the failure, and reissue the command.

ORA-16702: Data Guard broker command warning
Cause: A command to modify or query the database resulted in a warning.
Action: Check the Data Guard broker log for the warning and, if necessary, reissue the command.

ORA-16703: cannot set property while the database is enabled
Cause: An attempt was made to change a database property while the database was enabled.
Action: Disable the database first, update the property and then, reenable the database.

ORA-16704: cannot modify a read-only property
Cause: An attempt was made to change a read-only property.
Action: The property is controlled internally by the Data Guard broker and cannot be modified.

ORA-16706: no resource guard is available
Cause: Resource guard was not available to service the request.
Action: Contact Oracle Support Services.

ORA-16707: the value of the property string is invalid, valid values are string
Cause: An invalid property value was entered while broker management of the database was disabled.
Action: Reset the property to a valid value.

ORA-16708: the state supplied to broker is invalid
Cause: The state name specified was invalid for the database.
Action: Check the state name and reissue the request.

ORA-16709: standby archived log location settings conflict with database recovery area
Cause: The StandbyArchiveLocation or AlternateLocation property was set to USE_DB_RECOVERY_FILE_DEST, but the initialization parameter DB_RECOVERY_FILE_DEST did not specify a valid destination.
Action: Use a value other than USE_DB_RECOVERY_FILE_DEST for StandbyArchiveLocation or AlternateLocation, or set up a valid database recovery area by setting DB_RECOVERY_FILE_DEST to a valid destination.

ORA-16713: the Data Guard broker command timed out
Cause: The Data Guard broker timed out the command.
Action: Verify that the command is valid for the database and then retry the command.

ORA-16714: the value of property string is inconsistent with the database setting
Cause: The value of the specified configuration property was inconsistent with database in-memory settings or server parameter file settings. This may be caused by changing an initialization parameter that corresponds to a configuration property.
Action: Query the InconsistentProperties property on the database to determine the which properties are set inconsistently. Reset the properties to make them with the database settings.

ORA-16715: redo transport-related property string of standby database "string" is inconsistent
Cause: The value of the specified redo transport-related configuration property of the given standby database was inconsistent with the primary database redo transport service setting. This may be caused by changing an initialization parameter that corresponds to a configuration property.
Action: Query the InconsistentLogXptProps property on the primary database to determine which redo transport properties are set inconsistently Reset the properties on the standby database to make them consistent with the primary database redo transport settings.

ORA-16716: clearing parameter LOG_ARCHIVE_DEST failed
Cause: An attempt to clear the LOG_ARCHIVE_DEST parameter failed.
Action: Contact Oracle Support Services.

ORA-16717: clearing parameter LOG_ARCHIVE_DUPLEX_DEST failed
Cause: An attempt to clear the LOG_ARCHIVE_DUPLEX_DEST parameter failed.
Action: Contact Oracle Support Services.

ORA-16718: failed to locate database
Cause: The Data Guard broker was unable to locate the database in the broker configuration.
Action: Add the database to the broker configuration and then reissue the command.

ORA-16719: unable to query V$ARCHIVE_DEST fixed view
Cause: The broker failed to query the V$ARCHIVE_DEST fixed view."
Action: Test and clear the problem using SQL*Plus.

ORA-16720: no LOG_ARCHIVE_DEST_n initialization parameters available
Cause: All LOG_ARCHIVE_DEST_n initialization parameters were in use.
Action: Clear one or more LOG_ARCHIVE_DEST_n initialization parameters so that broker can use them to setup the primary database redo transport.

ORA-16721: unable to set LOG_ARCHIVE_DEST_n initialization parameters
Cause: The broker was unable to set one or more LOG_ARCHIVE_DEST_n initialization parameters.
Action: Check the Data Guard broker log and Oracle alert logs for more details.

ORA-16722: unable to set LOG_ARCHIVE_DEST_STATE_n initialization parameters
Cause: The broker was unable to set one or more LOG_ARCHIVE_DEST_STATE_n initialization parameters.
Action: Check the Data Guard broker log and Oracle alert logs for more details.

ORA-16723: setting AlternateLocation property conflicts with the redo transport setting
Cause: The standby database was not using standby redo logs, and the redo transport service to the standby database is set to a nonzero value for the ReopenSecs property and a value of zero for the MaxFailure property. In this case, the redo transport service will attempt to send redo data to the standby database indefinitely and never switch to the alternate destination.
Action: Any one of the following actions will solve the problem:
- add standby redo logs to the standby database.
- set ReopenSecs property to zero.
- set MaxFailure property to a nonzero value. After performing one of the above actions, reset the standby database AlternateLocation property.

ORA-16727: cannot close database
Cause: The Data Guard broker could not close the database.
Action: Terminate any active sessions connected to the database and then reissue the request.

ORA-16728: consistency check for property string found string error
Cause: The consistency check for the specified property failed due to the error shown.
Action: Check the error message and clear the error.

ORA-16729: validation of value for property string found string error
Cause: The property value validation failed due to the error shown.
Action: Check the error message and clear the error.

ORA-16730: error executing DBMS_LOGSTDBY.SKIP_TXN procedure
Cause: Logical standby database package may not be installed.
Action: Install logical standby database packages and reissue the request.

ORA-16731: error executing DBMS_LOGSTDBY.UNSKIP_TXN procedure
Cause: Logical standby database package may not be installed.
Action: Install logical standby database packages and reissue the request.

ORA-16732: error executing DBMS_LOGSTDBY.SKIP procedure
Cause: Logical standby database package may not be installed.
Action: Install logical standby database packages and reissue the request.

ORA-16733: error executing DBMS_LOGSTDBY.UNSKIP procedure
Cause: Logical standby database package may not be installed.
Action: Install logical standby database packages and reissue the request.

ORA-16734: error executing DBMS_LOGSTDBY.SKIP_ERROR procedure
Cause: Logical standby database package may not be installed.
Action: Install logical standby database packages and reissue the request.

ORA-16735: error executing DBMS_LOGSTDBY.UNSKIP_ERROR procedure
Cause: Logical standby database package may not be installed.
Action: Install logical standby database packages and reissue the request.

ORA-16736: unable to find the destination entry of standby database "string" in V$ARCHIVE_DEST
Cause: Either the standby destination was manually changed or deleted outside of Data Guard broker, or no entry was available for the Data Guard broker to use.
Action: Clean up the destination setting, remove the unused settings, and reset the redo transport service.

ORA-16737: the redo transport service for standby database "string" has an error
Cause: A communication problem with the standby database caused the redo transport to fail.
Action: Query the LogXptStatus property to see the error message. Check the Data Guard broker log and Oracle alert log for more details.

ORA-16738: redo transport service for database "string" is not running
Cause: The redo transport service for the specified standby database was not running.
Action: Check the Data Guard broker log and/or the alert log for more details. If necessary, start the redo transport service for the standby database.

ORA-16739: redo transport service for standby database "string" is running
Cause: The redo transport service for the standby database was running.
Action: Check the Data Guard broker log for more details. If necessary, stop the redo transport service for the standby database.

ORA-16740: redo transport service for standby database "string" incorrectly set to ALTERNATE
Cause: The redo transport service to the standby database was set to ALTERNATE when no other destination was set to alternate to this destination.
Action: Reenable the standby database or the entire configuration to allow the configuration property settings to be propagated to the initialization parameters.

ORA-16741: the destination parameter of standby database "string" has incorrect syntax
Cause: The destination defined in the server parameter file of the primary database had incorrect syntax and Data Guard broker failed to update the destination when redo transport services were enabled.
Action: Fix the syntax error in the primary database server parameter file or remove the entry from the server parameter file. Also, check the values of the redo transport-related properties for the specified standby database.

ORA-16742: the standby database "string" has exhausted its quota
Cause: The standby database exhausted its quota for storing archived redo logs.
Action: Remove some archived redo logs from the standby database or increase its quota.

ORA-16743: cannot determine status of redo transport service for standby database "string"
Cause: The status of redo transport to the specified standby database could not be determined.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16744: the DG_CONFIG list of LOG_ARCHIVE_CONFIG parameter is full
Cause: The DG_CONFIG list of the LOG_ARCHIVE_CONFIG attribute was full and the Data Guard broker was not able to add a new DB_UNIQUE_NAME to the list.
Action: Remove some unused entries in the DG_CONFIG list, then reenable the database.

ORA-16745: unable to add DB_UNIQUE_NAME "string" into the DG_CONFIG list because it is full
Cause: The DG_CONFIG list of the LOG_ARCHIVE_CONFIG attribute was full and the Data Guard broker was not able to add the specified DB_UNIQUE_NAME to the list.
Action: Remove some unused entries in the DG_CONFIG list, then reenable the database.

ORA-16746: Data Guard broker cannot mount the database
Cause: The Data Guard broker failed to mount the database."
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16747: logical standby database guard could not be turned on
Cause: The Data Guard broker could not turn on the logical standby database guard.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16748: Data Guard broker cannot open the primary database
Cause: The Data Guard broker failed to open the primary database" the database.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16749: switchover to logical standby database failed
Cause: The Data Guard broker failed to switch a logical standby database over to a primary database.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16750: failed to activate logical standby database
Cause: The Data Guard broker failed to activate a logical standby database.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16751: failed to switchover to physical standby database
Cause: The Data Guard broker failed to switch a physical standby database over to a primary database.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16753: Data Guard broker cannot open standby database
Cause: The Data Guard broker failed to open the standby database.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16754: failed to activate physical standby database
Cause: The Data Guard broker failed to activate the physical standby database.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16755: failed to set initialization parameter
Cause: The Data Guard broker failed to set an initialization parameter using either the ALTER SYSTEM SET or ALTER SYSTEM RESET command.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16757: unable to get this property's value
Cause: The Data Guard broker failed to get the value for the specified property, possibly because the specified property's value is not available for the current database role.
Action: If the specified property's value is not available for the database's current role, please specify this property for a database for which it is available. Otherwise, check the Data Guard broker log for more details.

ORA-16758: the specified apply instance is not running
Cause: The Data Guard broker could not start apply services on the specified instance because that instance was not running.
Action: Start the instance and then retry the command.

ORA-16759: cannot start SQL Apply with initial SCN
Cause: The Data Guard broker failed to start SQL Apply with an initial SCN.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16760: cannot start SQL Apply
Cause: The Data Guard broker failed to start SQL Apply.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16761: cannot stop SQL Apply
Cause: The Data Guard broker failed to stop SQL Apply.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16762: invalid database state
Cause: Database was not in the intended state.
Action: Determine the reason why the database is not running in the intended state and reissue the command.

ORA-16763: redo transport service for a standby database is running
Cause: The redo transport service for a standby database was running.
Action: Query the StatusReport property of the primary database for more details. If necessary, stop the redo transport service for the database.

ORA-16764: redo transport service to a standby database is not running
Cause: The redo transport service to a standby database was not running.
Action: Query the StatusReport property of the primary database for more details. If necessary, start the redo transport service.

ORA-16765: Redo Apply is running
Cause: Redo Apply was running when it should have been stopped.
Action: If necessary, stop Redo Apply.

ORA-16766: Redo Apply is stopped
Cause: Redo Apply was stopped when it should have been running.
Action: If necessary, start Redo Apply.

ORA-16767: SQL Apply is running
Cause: SQL Apply was running when it should have been stopped."
Action: If necessary, stop SQL Apply.

ORA-16768: SQL Apply is stopped
Cause: SQL Apply was stopped when it should have been running."
Action: If necessary, start SQL Apply.

ORA-16769: the physical standby database is open read-only
Cause: All instances in the physical standby database were put into a read-only state instead of APPLY-OFF.
Action: Issue the EDIT DATABASE SET STATE command to set the database to the APPLY-OFF state.

ORA-16770: Redo Apply not started since physical standby database is opening
Cause: Redo Apply services could not be started on the physical standby database because it was being opened. The Data Guard broker will start Redo Apply services once the physical standby database has been opened.
Action: No action required.

ORA-16771: failover to a physical standby database failed
Cause: The Data Guard broker encountered errors when converting a physical standby database to a primary database.
Action: Check the Data Guard broker log and the Oracle alert log for more details about the error.

ORA-16772: switchover to a standby database failed
Cause: The Data Guard broker encountered errors when switching over to the specified standby database.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16773: cannot start Redo Apply
Cause: The Data Guard broker failed to start Redo Apply.
Action: Check the Data Guard broker log and Oracle alert log for more details. If the database is already open, the broker will not be able to start Redo Apply if the COMPATIBLE initialization parameter is set to a value less than 11.0.

ORA-16774: cannot stop Redo Apply
Cause: The Data Guard broker failed to stop Redo Apply.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16775: target standby database in broker operation has potential data loss
Cause: The target standby database specified for the broker operation did not have all the redo data from the primary database.
Action: Confirm that the redo transport service on the primary database is functioning correctly by checking its status using the StatusReport monitorable property. Reissue the broker command once all redo data is available on the target standby database.

ORA-16776: health check of the redo transport service failed
Cause: The Data Guard broker could not complete the health check for the redo transport service.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16777: unable to find the destination entry of a standby database in V$ARCHIVE_DEST
Cause: Either a destination was manually deleted or no entry was available for Data Guard.
Action: Check the Data Guard broker log and the Oracle alert log for more details. The redo transport service may need to be reset.

ORA-16778: redo transport error for one or more databases
Cause: The redo transport service was unable to send redo data to one or more standby databases.
Action: Check the Data Guard broker log and Oracle alert log for more details. Query the LogXptStatus property to see the errors.

ORA-16779: the destination parameter of a database is set incorrectly
Cause: The destination was defined in the LOG_ARCHIVE_DEST_n server parameter file with incorrect syntax. The Data Guard broker failed to update the destination when the redo transport was turned on.
Action: Check the Data Guard broker log to see which database has the problem. Fix the syntax error in the server parameter file or remove the entry from the server parameter file. Check if the syntax of the redo transport-related properties are correct.

ORA-16780: a database has exhausted its archived redo log storage quota
Cause: A database has exhausted its quota for storing archived redo logs.
Action: Check the Data Guard broker log to see which database has the problem. Remove some archived logs at the standby database or increase its quota.

ORA-16781: cannot determine status of redo transport service for standby database
Cause: The status of redo transport to the specified standby database could not be determined.
Action: Check the Data Guard broker log and Oracle alert log for more details.

ORA-16782: instance not open for read and write access
Cause: The database was mounted on an instance but not opened for read and write access.
Action: Check the StatusReport property for more details and, if possible, open the instance manually.

ORA-16783: instance string not open for read and write access
Cause: The database was mounted on an instance but not opened for read and write access.
Action: Check the StatusReport property for more details and, if possible open the instance manually.

ORA-16784: database name specified by Dependency property is incorrect
Cause: The database name, that should be the value of the DB_UNIQUE_NAME initialization parameter, specified in the Dependency property was incorrect.
Action: Reset the Dependency property to the correct name of the database.

ORA-16785: the database is in NOARCHIVELOG mode
Cause: The database was in NOARCHIVELOG mode when it was either a primary database or when it was a standby database that was being switched over to be a primary database.
Action: Set the database to ARCHIVELOG mode by issuing the ALTER DATABASE ARCHIVELOG command.

ORA-16786: unable to access Data Guard broker metadata
Cause: The Data Guard broker configuration files did not exist or for some other reason the Data Guard broker configuration metadata could not be accessed.
Action: Check the Data Guard broker log for more details.

ORA-16788: unable to set one or more database configuration property values
Cause: This situation occurred when the broker attempted to set database configurable property values into the database by issuing ALTER SYSTEM or ALTER DATABASE commands. Typical causes of this error are:
- The values of redo transport-related properties contain syntax syntax errors.
- The value of the LogArchiveTrace property was out of range.
Action: Check the Data Guard broker log to see which property has the problem and set the property to the correct value.

ORA-16789: standby redo logs not configured
Cause: Standby redo logs were not configured for the database.
Action: Standby redo logs are required when the redo transport mode is set to SYNC or ASYNC. Check the Data Guard documentation to see how to create standby redo logs.

ORA-16790: the value of the configurable property is invalid
Cause: An invalid property value was entered.
Action: Reset the property to a correct value.

ORA-16791: unable to check the existence of the standby redo logs
Cause: The database may not be mounted, or the query of the V$STANDBY_LOG fixed view failed.
Action: Ensure the database is mounted and query the V$STANDBY_LOG fixed view to see if the problem has been corrected, and retry the operation.

ORA-16792: configurable property value is inconsistent with database setting
Cause: The values of one or more configurable properties were inconsistent with database in-memory settings or server parameter file settings. This may happen by directly altering initialization parameters instead of editing configurable property values using Data Guard broker.
Action: Query the InconsistentProperties property on the database or check the Data Guard broker log to find which properties are set inconsistently. Reset these properties to make them consistent with the database settings. Alternatively, enable the database or the entire configuration to allow the configurable property settings to be propagated to the initialization parameters.

ORA-16793: logical standby database guard is off
Cause: The logical standby database guard was turned off.
Action: Issue the ALTER DATABASE GUARD ALL command to turn the guard on and verify that Data Guard health check error or warning is cleared.

ORA-16794: database guard is on for primary database
Cause: The database guard was turned on for the primary database.
Action: Issue the ALTER DATABASE GUARD NONE command to turn off the guard and verify that Data Guard health check error or warning is cleared.

ORA-16795: the standby database needs to be re-created
Cause: A switchover or failover operation caused this database to require re-creation. The database was marked for re-creation because it was not a viable standby database for the new primary database. Until this error status is resolved for this database, information about this database and the broker configuration to which it belongs is unavailable to a broker client that is connected to this database. Therefore, all commands directed by that client to this database cannot be completed.
Action: Re-create (or flash back) the standby database. Connect to the primary database in the broker configuration and reenable broker management of that database. Once enabled, it is possible to connect to that standby database and manage it with the broker. Alternatively, many client commands that cannot be completed at the standby database when in this error state can be completed successfully when issued to the primary database. In this case, simply reconnect to the primary database and retry the command.

ORA-16796: one or more properties could not be imported from the database
Cause: The broker was unable to import property values for the database being added to the broker configuration. This error indicates:
- The Oracle Net service name specified in DGMGRL CREATE CONFIGURATION or ADD DATABASE command was not one that provides access to the database being added.
- There were no instances running for the database being added.
Action: Remove the database from the configuration using the REMOVE CONFIGURATION or REMOVE DATABASE command. Make sure that the database to be added has at least one instance running and that the Oracle Net service name provides access to the running instance. Also check the broker log file for additional information. Then, reissue the CREATE CONFIGURATION or ADD DATABASE command.

ORA-16797: database is not using a server parameter file
Cause: The database was not using a server parameter file or the broker was unable to access the server parameter file.
Action: Issue the CREATE SPFILE='..' FROM PFILE='...'" command to create a server parameter file and then restart the database to use it.

ORA-16798: unable to complete terminal recovery on the standby database
Cause: Terminal recovery on the standby database failed during the failover operation.
Action: Check the Data Guard broker log and the Oracle alert logs to see more details on the reason for the failure.

ORA-16799: Redo Apply is not running
Cause: Either the Data Guard broker metadata indicates that Redo Apply was turned off, or the recovery process, MRP0, was not running. As a result, Redo Apply-related properties could not be set.
Action: Turn on Redo Apply through Data Guard broker and reissue the command to set a Redo Apply-related property.

ORA-16800: redo transport service for a standby database incorrectly set to ALTERNATE
Cause: The redo transport service for a standby database was set to ALTERNATE when no other destination is set to alternate to this destination.
Action: Reenable the standby database or the entire configuration to allow the configuration property settings to be propagated to the initialization parameters.

ORA-16801: redo transport-related property is inconsistent with database setting
Cause: The values of one or more redo transport-related configuration properties were inconsistent with database in-memory settings or server parameter file settings. This may happen by directly altering initialization parameters instead of editing configurable property values using Data Guard broker.
Action: Query the InconsistentLogXptProps property on the primary database or check the Data Guard broker log to find which properties are set inconsistently. Reset these properties to make them consistent with the database settings. Alternatively, enable the database or the entire configuration to allow the configurable property settings to be propagated to the initialization parameters.

ORA-16802: downgrading redo transport mode from SYNC disallowed
Cause: An attempt was made to downgrade the redo transport mode of a standby database from SYNC to ASYNC when the configuration was in Maximum Protection or Maximum Availability mode and the primary database was a RAC database. This was not disallowed even though there may have been other standby databases with redo transport modes set to SYNC to support the protection mode.
Action: Do one of the following if the redo transport mode of the standby must be downgraded:
- Shut down all instances of the primary database and restart one instance with the initialization parameter CLUSTER_DATABASE set to FALSE. Downgrade the redo transport mode of the standby database of interest. Then, shutdown the instance, set the the CLUSTER_DATABASE initialization parameter to TRUE, and restart all primary database instances.
- Downgrade the protection mode to Maximum Performance mode and then, downgrade the redo transport mode of the standby database of interest. Finally, upgrade the protection mode. This will require a restart of all primary database instances if upgrading to Maximum Protection mode. Note that the above only works when there is at least one standby database in the configuration that has its redo transport mode set to SYNC.

ORA-16803: unable to query a database table or fixed view
Cause: Failed to query a database table or fixed view. The database may not be opened or mounted.
Action: Check the Data Guard broker log for more details.

ORA-16804: one or more configuration properties in metadata have invalid values
Cause: Data Guard broker health check detected that one or more configuration properties in the broker configuration had invalid values. The property values were changed while broker management of the database was disabled.
Action: Check Data Guard broker log for more details on which properties have invalid values and reset them through the Data Guard broker.

ORA-16805: change of LogXptMode property violates overall protection mode
Cause: The broker disallowed the attempt to change the LogXptMode configurable property for the standby database because, if allowed, the overall protection mode for the configuration would have been violated.
Action: If the LogXptMode configuration property must be changed for the specified standby database, first downgrade the overall protection mode for the broker configuration. After that operation has completed, the LogXptMode configuration property for the standby database can be changed.

ORA-16806: supplemental logging is not turned on
Cause: Supplemental logging was not turned on while there was a logical standby database in the configuration. This could happen either on the primary database or on the logical standby database that was being switched over to be the primary database.
Action: Check the Data Guard broker log for more details. Issue the ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY, UNIQUE INDEX) COLUMNS to add supplemental logging.

ORA-16807: unable to change database protection mode
Cause: An attempt to issue the ALTER DATABASE SET STANDBY TO MAXIMIZE {PROTECTION | AVAILABILITY | PERFORMANCE} failed.
Action: Check the Data Guard broker log and the Oracle log for more information.

ORA-16808: primary database is not open
Cause: A prior attempt to open the primary database was disallowed because the fast-start failover status could not be evaluated. The fast-start failover status has since been evaluated and the database can now be opened.
Action: Open the database by issuing the SQL*Plus ALTER DATABASE OPEN command.

ORA-16809: multiple warnings detected for the database
Cause: The broker detected multiple warnings for the database.
Action: Check the StatusReport monitorable property of the specifed database to get a detailed status report.

ORA-16810: multiple errors or warnings detected for the database
Cause: The broker detected multiple errors or warnings for the database.
Action: Check the StatusReport monitorable property of the specified database to get a detailed status report.

ORA-16811: apply instance not recorded by the Data Guard broker
Cause: The broker did not register an apply instance for a standby database.
Action: Reenable the standby database to clear the error.

ORA-16812: log apply service not running on apply instance recorded by the broker
Cause: Log apply services were not running on the instance the Data Guard broker expected them to be running upon.
Action: Reenable the standby database to clear the error.

ORA-16813: log apply service not running on apply instance string recorded by the broker
Cause: Log apply services were not running on the instance the Data Guard broker expected them to be running upon.
Action: Reenable the standby database to clear the error.

ORA-16814: incorrect redo transport setting for AlternateLocation for standby database
Cause: The Data Guard broker detected an incorrect redo transport setting for a standby database AlternateLocation property. The incorrect setting could be one of the following:
- The AlternateLocation property was empty, but the redo transport to the standby database had an ALTERNATE setting.
- The AlternateLocation property was not empty and the redo transport to the standby database had no ALTERNATE setting.
- The AlternateLocation property did not match the ALTERNATE setting in the redo transport. The mismatch may include service string, directory specification of the alternate location, or the DB_UNIQUE_NAME attribute.
- The LOG_ARCHIVE_DEST_STATE_n parameter corresponding to the alternate location was not set to ALTERNATE.
- The flash recovery area was being used by the standby database for archived logs, but the redo transport to the standby database still had an ALTERNATE setting for the AlternateLocation property. Data Guard broker logs provide more details on which of the above cases caused the error.
Action: Reenable the primary database to clear the error.

ORA-16815: incorrect redo transport setting for AlternateLocation for standby database "string"
Cause: The Data Guard broker detected an incorrect redo transport setting for a standby database AlternateLocation property. The incorrect setting could be one of the following:
- The AlternateLocation property was empty, but the redo transport to the standby database had an ALTERNATE setting.
- The AlternateLocation property was not empty and the redo transport to the standby database had no ALTERNATE setting.
- The AlternateLocation property did not match the ALTERNATE setting in the redo transport. The mismatch may include service string, directory specification of the alternate location, or the DB_UNIQUE_NAME attribute.
- The LOG_ARCHIVE_DEST_STATE_n parameter corresponding to the alternate location was not set to ALTERNATE.
- The flash recovery area was being used by the standby database for archived logs, but the redo transport to the standby database still had an ALTERNATE setting for the AlternateLocation property. Data Guard broker logs provide more details on which of the above cases caused the error.
Action: Reenable the primary database to clear the error.

ORA-16816: incorrect database role
Cause: The Data Guard broker detected that the specified database had a database role that was different from the database role recorded in the Data Guard configuration. This could be the result of a failed switchover or failover operation, or an out-of-band switchover or failover operation done to the database.
Action: Manually fix the database to convert it to the appropriate database role, then issue an ENABLE DATABASE command to reenable the database.

ORA-16817: unsynchronized fast-start failover configuration
Cause: The fast-start failover target standby database was not synchronized with the primary database. As a result, a fast-start failover could not happen automatically in case of a primary database failure.
Action: Ensure that the fast-start failover target standby database is running and that the primary database can ship redo data to it. When the standby database has received all of the redo data from the primary database, the primary and standby databases will then be synchronized. The Data Guard configuration may then fail over automatically to the standby database in the event of loss of the primary database.

ORA-16818: fast-start failover suspended
Cause: The primary database was intentionally shutdown. As a result, a fast-start failover could not happen automatically.
Action: Start the primary database. This effectively restores the ability to automatically perform a fast-start failover in the event of a failure of the primary database.

ORA-16819: fast-start failover observer not started
Cause: The observer for fast-start failover was not started. As a result, fast-start failover could not happen in the case of a primary database failure.
Action: Start the fast-start failover observer by using, for example, the DGMGRL START OBSERVER command.

ORA-16820: fast-start failover observer is no longer observing this database
Cause: A previously started observer was no longer actively observing this database. A significant amount of time elapsed since this database last heard from the observer. Possible reasons were:
- The host where the observer was running was not available.
- The network connection between the observer and this database was not available.
- The observer process was terminated unexpectedly.
Action: Check the reason why the observer cannot contact this database. If the problem cannot be corrected, stop the current observer by connecting to the Data Guard configuration and issue the DGMGRL STOP OBSERVER command. Then, restart the observer on another host. Finally, use the DGMGRL START OBSERVER command to start the observer on the other host.

ORA-16821: logical standby database dictionary not yet loaded
Cause: The logical standby database had not loaded the dictionary. This status was detected by the broker health check mechanism. Alternatively, this status may be returned when attempting to switch or fail over to a logical standby database that had not yet loaded its dictionary.
Action: Start SQL Apply on the logical standby database, if it is not already running, and wait for it to reach the APPLYING state.

ORA-16822: new primary database not yet ready for standby database reinstatement
Cause: The new primary database, as a result of a logical standby database failover operation, had not fully completed the failover operation. An attempt to reinstate a disabled standby database could not be completed until failover completed on the new primary database.
Action: Wait until the failover operation has completed on the new primary database. Then retry the reinstate operation.

ORA-16823: redo transport mode is incompatible for current operation
Cause: The redo transport mode of this database was incompatible for this broker operation.
Action: Reset the LogXptMode database property for this database and retry the broker operation.

ORA-16824: multiple warnings, including fast-start failover-related warnings, detected for the database
Cause: The broker detected multiple warnings for the database. At least one of these warnings may have prevented fast-start failover from occurring.
Action: Check the StatusReport monitorable property of the database specified.

ORA-16825: multiple errors or warnings, including fast-start failover-related errors or warnings, detected for the database
Cause: The broker detected multiple errors or warnings for the database. At least one of these errors or warnings may have prevented a fast-start failover from occurring.
Action: Check the StatusReport monitorable property of the database specified.

ORA-16826: apply service state is inconsistent with the DelayMins property
Cause: This warning was caused by one of the following reasons:
- The apply service was started without specifying the real-time apply option or without the NODELAY option when the DelayMins property was set to zero.
- The apply service was started with the real-time apply option or with the NODELAY option when the DelayMins property was set to a value greater than zero.
Action: Reenable the standby database to allow the broker to restart the apply service with the apply options that are consistent with the specified value of the DelayMins property.

ORA-16827: Flashback Database is disabled
Cause: The broker detected that the Flashback Database feature was disabled. With Flashback Database disabled, the broker would not be able to:
- reinstate a database that required reinstatement.
- convert a physical standby database to a snapshot standby database.
- convert a snapshot standby database to a physical standby database. Flashback Database may been disabled manually with the ALTER DATABASE FLASHBACK DATABASE OFF command or automatically by the database in the event of an error.
Action: Check the database alert log to determine whether Flashback Database was disabled due to errors and then correct the problem. If Flashback Database had been manually disabled, reenable Flashback Database with the ALTER DATABASE FLASHBACK DATABASE ON command. If, after enabling Flashback Database, the database still cannot be reinstated or converted, you must re-create the database from a copy of the primary database.

ORA-16828: invalid value specified for REDO_TRANSPORT_USER initialization parameter
Cause: An invalid value was specified for the REDO_TRANSPORT_USER initialization parameter. The length of the user name exceeded 30 characters.
Action: Check the documentation and specify a new value for the REDO_TRANSPORT_USER initialization parameter.

ORA-16829: fast-start failover configuration is lagging
Cause: The fast-start failover target standby database was not within the lag limit specified by the FastStartFailoverLagLimit configuration property. As a result, a fast-start failover could not happen in the event of a primary database failure.
Action: Ensure that the fast-start failover target standby database is running and applying redo data and that the primary database is successfully trasmitting redo data. If this condition persists consider raising the value of the FastStartFailoverLagLimit configuration property.

ORA-16830: primary isolated from fast-start failover partners longer than FastStartFailoverThreshold seconds: shutting down
Cause: The primary database was isolated from both the observer and target standby database for longer than the seconds specified by the FastStartFailoverThreshold property. A fast-start failover probably occurred. If the FastStartFailoverPmyShutdown configuration property was set to TRUE, the broker will shut down the primary database in this situation.
Action: Ensure one instance of this database is running and the database is mounted on that instance so that the broker may reinstate the old primary database.

ORA-16831: operation disallowed on this standby database type
Cause: The Data Guard broker operation was disallowed on the standby database type.
Action: Check the documentation for the correct standby database type and reissue the Data Guard broker command to another standby database that is of the correct standby database type.

ORA-16950: Remote mapped cursors are not supported by this feature.
Cause: This cursor is a remote mapped cursor which could not be processed locally.
Action: Try to process this statement directly on the remote site.

ORA-16951: Too many bind variables supplied for this SQL statement.
Cause: Binding this SQL statement failed because too many bind variables were supplied.
Action: Pass the correct number of bind variables.

ORA-16952: Failed to bind this SQL statement.
Cause: Binding this SQL statement failed.
Action: Check if bind variables for that statement are properly specified.

ORA-16953: Type of SQL statement not supported.
Cause: This type of SQL statement could not be processed.
Action: None

ORA-16954: SQL parse error.
Cause: The specified SQL statement failed to be parsed.
Action: Check if syntax is correct and ensure that this statement can be parsed by the specified user name.

ORA-16955: Unknown error during SQL analyze.
Cause: The specified SQL statement failed to be analyzed.
Action: This is an internal error, please contact Oracle support.

ORA-16956: Only SELECT or DML statements are supported for test execute.
Cause: The specified SQL statement cannot be tested for execute.
Action: None

ORA-16957: SQL Analyze time limit interrupt
Cause: This is an internal error code used indicate that SQL analyze has reached its time limit.
Action: None

ORA-16958: DML statements running parallel are not supported for test execute.
Cause: The specified DML statement cannot be tested for execute because part of it is running parallel.
Action: None

ORA-16959: Statement type has been disabled for SQL Analyze
Cause: The system attempted to analyze a type of statement that was disabled by the current feature.
Action: Try a different feature capable of analyzing this statement type.

ORA-16960: SQL Analyze could not reproduce the desired plan.
Cause: SQL Analyze failed to reproduce a particular plan using an outline.
Action: Check the outline data.

ORA-16961: SQL statement with SQL patch is ignored
Cause: SQL statements with SQL patches are not supported by SQL tuning advisor.
Action: Check the SQL patch information. Rerun SQL repair advisor on that SQL statement for a potential better SQL patch.

ORA-17500: ODM err:string
Cause: An error returned by ODM library
Action: Look at error message and take appropriate action or contact Oracle Support Services for further assistance

ORA-17501: logical block size string is invalid
Cause: logical block size for oracle files must be a multiple of the physical block size, and less than the maximum
Action: check INIT.ORA file parameters

ORA-17502: ksfdcre:string Failed to create file string
Cause: file creation failed due to either insufficient OS permission or the file already exists
Action: check additional error messages

ORA-17503: ksfdopn:string Failed to open file string
Cause: file open failed due to either insufficient OS permission or the name of file exceeds maximum file name length.
Action: check additional error messages

ORA-17504: ksfddel:Failed to delete file string
Cause: The file that was being deleted is still in use or the process has insufficient permission to delete file.
Action: check additional error messages

ORA-17505: ksfdrsz:string Failed to resize file to size string blocks
Cause: There is insufficient space left on the device or the process has insufficient permission to resize file.
Action: check additional error messages

ORA-17506: I/O Error Simulation
Cause: The i/o request is marked with error because the i/o error simulation event is turned on.
Action: None

ORA-17507: I/O request size string is not a multiple of logical block size
Cause: i/o's are done in multiple of logical block size
Action: Check additional error messages

ORA-17508: I/O request buffer ptr is not alligned
Cause: i/o request buffer should be alligned, check additional information for buffer ptr value
Action: Call Oracle Support Services

ORA-17509: Attempt to do i/o beyond block1 offset
Cause: When a file is identified with logical block size of 0, only i/o's to block1 is allowed.
Action: check additional error messages and call Oracle Support Services

ORA-17510: Attempt to do i/o beyond file size
Cause: The i/o request points to a block beyond End Of File
Action: check additional error messages and call Oracle Support Services

ORA-17512: Block Verification Failed
Cause: Block Verification after a read operation on a database file failed since the block is media corrupt.
Action: check additional error messages in the trace file and call Oracle Support Services

ORA-17610: file 'string' does not exist and no size specified
Cause: An attempt to create a file found neither an existing file nor a size for creating the file.
Action: Specify a size for the file.

ORA-17611: ksfd: file 'string' cannot be accessed, global open closed
Cause: An attempt to write to a file which has gone offline/unidentified
Action: Check for other errno in the stack

ORA-17612: Failed to discover Oracle Disk Manager library, return value string
Cause: Discovery of the odm library by calling odm_discover() failed
Action: Contact your storage vendor who has provided the ODM library or call Oracle Support

ORA-17613: Failed to initialize Oracle Disk Manager library: string
Cause: ODM initialization for the thread failed due to insufficient previlige or memory.
Action: Make sure there is enough system resources available for the oracle process and it has access to the ODM library

ORA-17618: Unable to update block 0 to version 10 format
Cause: An attempt was made to update block 0 to version 10 format.
Action: Check additional error messages and call Oracle Support Services

ORA-17619: max number of processes using I/O slaves in a instance reached
Cause: An attempt was made to start large number of processes requiring I/O slaves.
Action: There can be a maximum of 35 processes that can have I/O slaves at any given time in a instance.

ORA-17620: failed to register the network adapter with Oracle Disk Manager library: string
Cause: The ODM library returned an error while trying to register the network adapter.
Action: Make sure the network adapter name given in the fileio_network_adapters is a valid name, and that the Oracle user has the correct access privileges.

ORA-17621: failed to register the memory with Oracle Disk Manager library
Cause: The ODM library returned an error while trying to register the memory.
Action: Contact the Oracle Disk Manager Library provider.

ORA-17622: failed to deregister the memory with Oracle Disk Manager library
Cause: The ODM library returned an error while trying to deregister the memory.
Action: Contact the Oracle Disk Manager Library provider

ORA-17624: Failed to delete directory string
Cause: The directory that was being deleted is still in use or the process had insufficient permission to delete the directory.
Action: check additional error messages.

ORA-17626: ksfdcre: string file exists
Cause: trying to create a database file, but file by that name already exists
Action: verify that name is correct, specify REUSE if necessary

ORA-17627: string
Cause: An error returned by OCI while sending/receiving message from remote instance
Action: Look at error message and take appropriate action or contact Oracle Support Services for further assistance

ORA-17628: Oracle error string returned by remote Oracle server
Cause: Oracle server on the remote instance has returned an error.
Action: Look at remote instance alert log/trace file for more information and take appropriate action or contact Oracle Support Services for further assistance

ORA-17629: Cannot connect to the remote database server
Cause: Connecting to the remote server specified by database connect string for netowrk file transfer failed.
Action: Check additional error messages

ORA-17630: Mismatch in the remote file protocol version client string server string
Cause: Cannot communicate with the remote database server as there is a mismatch in the Oracle file protocol version.
Action: Check additional error messages

ORA-17631: dbname 'string' specified by remote server does not match the instance name 'string'
Cause: The dbname specified by the remote server is not intended for this instance.
Action: Check the dbname specified in the command of the remote instance and look for further error messages.

ORA-17632: file 'string' is a formatted ASM disk
Cause: An attempt to create a datafile on a device that was formatted for ASM disk failed.
Action: Check that the device specified is not an ASM disk. If you would like to use the disk for datafiles, please clear the disk before you retry the operation.

ORA-18000: invalid outline name
Cause: The parser detected a missing or invalid outline name
Action: None

ORA-18001: no options specified for ALTER OUTLINE
Cause: The parser detected that no clause was specified on the command Our performance tests, which are not typical as they exercise all branches of the code, have shown approximately a 30% performance increase line for ALTER OUTLINE.
Action: Re-issue the command, specifying a valid ALTER OUTLINE clause.

ORA-18002: the specified outline does not exist
Cause: Either the outline did not exist to begin with, or a timing window allowed for another thread to drop or alter the outline midstream.
Action: None

ORA-18003: an outline already exists with this signature
Cause: The signature generation algorithm generates signatures that are are 16 bytes in length so it is highly unlikely that any 2 signatures will be identical. This message is raised in such a rare case.
Action: Either re-issue the statement that led to the outline being created with some whitespace added or force the outline to be created in a different category.

ORA-18004: outline already exists
Cause: An outline already exists, either with the specified name, or for the specified SQL text.
Action: None

ORA-18008: cannot find OUTLN schema
Cause: The database creation script that creates this schema must not have been executed.
Action: Review the log files to see what happened when the database was created.

ORA-18009: one or more outline system tables do not exist
Cause: Either the database creation script that creates these tables was not executed or a user accidently deleted the table
Action: Review the log files to see what happened when the database was created.

ORA-18010: command missing mandatory CATEGORY keyword
Cause: User failed to specify the CATEGORY keyword
Action: Re-issue the command with the CATEGORY keyword included

ORA-18015: invalid source outline signature
Cause: User imported an 8i outline into a 9i database without updating signatures
Action: execute dbms_outln.update_signatures

ORA-19000: missing RELATIONAL keyword
Cause: The keyword RELATIONAL in the work OBJECT RELATIONAL is missing in the XMLTYPE storage clause specification.
Action: Supply the RELATIONAL keyword in the storage clause