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Managing the Data Protector Internal Database
Recovering the IDB
Chapter 9424
• The catalogs created by subsequent backups are good enough.
• There is no IDB backup available.
Recovery
Procedure
Proceed as follows:
1. Run the command:
omnidbutil -writedb -no_detail -cdb <Directory> -mmdb
<Directory>
to write the IDB without detail catalogs to ASCII files.
2. Run the command:
omnidbutil -readdb -cdb <Directory> -mmdb <Directory>
to read the IDB from the ASCII files.
The operation lasts approximately 5-20 minutes.
After the detail catalogs are removed, all DC binary files can be deleted,
although the DC directories are still registered. Subsequent backups will
store the file versions in the DC binary files.
Recovering the IDB Using IDB Recovery File and
Changed Device
Use this procedure to recover the IDB if the IDB recovery file
(obrindex.dat) is available but the original device used for the IDB
backup is different from the one to be used for recovery, or the medium is
located in a different slot.
Prerequisites Ensure the following before performing the database recovery:
• Mount a disk of the same size as before the disaster on the same
directories as at the IDB backup time (on Windows systems, the same
drive letters must be assigned). If this cannot be ensured, follow the
procedure for recovering the IDB to a different disk/volume layout.
You can use the -preview option of the omnidbrestore command
to see where the files will be restored.
• If possible, move the media.log file from the previous installation to
a safe place. It will provide you with the information about the media
used since the last IDB backup. This is very helpful for updating the
IDB if transaction logs are not available.