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Resolving Oracle RMAN-06023 or RMAN-06025

Resolving Oracle RMAN-06023 or RMAN-06025

Posted by PDSERVICE on 3月 08, 2020 In

Resolving Oracle RMAN-06023 or RMAN-06025 

 

RMAN-06023: no backup or copy of datafile number found to restore

Cause: A datafile, tablespace, or database restore could not proceed because no backup or copy of the indicated file was found. It may be the case that a backup or copy of this file exists but does not satisfy the criteria specified in the user's restore operands.
Action: None - this is an informational message. See message 6026 for further details.
 
 
RMAN-06025: no backup of archived log for thread number with sequence number and starting SCN of string found to restore
Cause: An archived log restore restore could not proceed because no backup of the indicated archived log was found. It may be the case that a backup of this file exists but does not satisfy the criteria specified in the user's restore operands.
Action: None - this is an informational message. See message 6026 for further details.
 
 

 

SYMPTOMS
 You are receiving error:
 
RMAN-06025: no backup of archived log for thread 1 with sequence 19684 and starting SCN of 1483914453 found to restore
 
OR
 
RMAN-06023: no backup or copy of datafile 4 found to restore
 
CAUSE
 These errors are returned by RMAN when it is unable to identify a backup of either an archivelog file (RMAN-06025) or datafile (RMAN-06023)
 
SOLUTION
1.  Connected with RMAN to the instance in which you are running the restore (or the target when running an RMAN duplicate) and issue:
 
For RMAN-06025: no backup of archived log.......
 
RMAN>  list backup of archivelog sequence <sequence# returned by error>;
For example:
 
RMAN>  list backup of archivelog sequence 19684;
For RMAN-06023: no backup or copy of datafile ......
 
RMAN>  list backup of datafile <number returned by the error>;
For example:
 
RMAN>  list backup of datafile 4;
2.  If no backups are returned:
 
a.  Check if the you should be connecting to a catalog.
 
b.  If no catalog is used, you may need to catalog the backups contining the file (archivelog or datafile).  To do this, execute:
 
RMAN>  catalog start with '/location of backup/' noprompt;
If backups are on tape, see:
 
Note 550082.1 How to Catalog Tape Backup Pieces
 
c.  Consider restoring a controlfile which contains the backup information.
 
3.  If RMAN returns backup information:
 
a.  Check that the backup's status is available.  
 
For example:
 
RMAN> list backup of datafile 4;
 
 
List of Backup Sets
===================
 
BS Key Type LV Size Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
291 Full 1.06G DISK 00:00:15 27-JUL-15
BP Key: 292 Status: AVAILABLE Compressed: NO Tag: TAG20150727T144532
Piece Name: <backuppiece path</<backuppiece name>
 
  
 
b.  for datafiles, check that the datafile's Ckp SCN/Ckp Time in the backup is before the until specified by the restore/duplicate:
 
For example:
 
RMAN> list backup of datafile 4;
 
List of Backup Sets
===================
 
BS Key Type LV Size Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ --------------------
291 Full 1.06G DISK 00:00:15 27-JUL-2015 14:45:47
BP Key: 292 Status: AVAILABLE Compressed: NO Tag: TAG20150727T144532
Piece Name: <backuppiece path</<backuppiece name>
List of Datafiles in backup set 291
 
 
File LV Type Ckp SCN Ckp Time Name
---- -- ---- ---------- -------------------- ----
4 Full 59195530 27-JUL-2015 14:45:32 <db file path>/<db file name>
 
  
 
c.  check that the backup you expect to be used is within the CURRENT incarnation.
 
For example:
 
RMAN> list incarnation;
 
using target database control file instead of recovery catalog
 
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
------- ------- -------- ---------------- --- ---------- ----------
1 1 <db name> 82280094 PARENT 1 19-JUN-2015 10:31:58
2 2 <db name> 82280094 CURRENT 59448598 29-JUL-2015 12:45:27
 
  
 
In this case, we clearly see that the backup from 27-JUL-2015 was not taken in the CURRENT incarnation, Reset Time=29-JUL-2015.  To restore the backup of datafile 4, the incarnation must be reset.
 
For example:
 
RMAN> reset database to incarnation 1;
 
database reset to incarnation 1
 
RMAN> list incarnation;
 
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
------- ------- -------- ---------------- --- ---------- ----------
1 1 <db name> 82280094 CURRENT 1 19-JUN-2015 10:31:58
2 2 <db name> 82280094 ORPHAN 59448598 29-JUL-2015 12:45:27
 
 
 
NOTE:  If you are getting 'specification does not match any archive log..' for archivelog files, this is a bit different.  This error indicates that the controlfile doesn't know of an existing archivelog file vs backup.  See Note 869671.1 RMAN List / Delete error with "specification does not match any archive log..."