AIX 7.2 MKSYSB Backup and Restore Best Practices?


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Excellent. Good to know you are sorted.

Just to clarify, I do mean DVD-RAM . A ROM would be Read Only (hence the O)

It's different to DVD-RW & DVD+RW and there is a bit of discussion on a Wikipedia page : DVD-RAM - Wikipedia
To get it all to work, we had to make a mksysb image on a local disk and then use mkdvd appropriately. Oddly it eventually calls readcd with the write flag set, but you probably won't need to worry about that. It did need a chunk of free space in the rootvg too, just over twice the size of the mksysb image. I also had to adjust the LV creating algorithm in mkdvd (I think) because it estimated too small and we were continually running out of space in the temporary LVs it creates.


Is there anything else we can try to help with?


Robin
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BDB.DB0(5)							AFS File Reference							BDB.DB0(5)

NAME
bdb.DB0, bdb.DBSYS1 - Contain the Backup Database and associated log DESCRIPTION
The bdb.DB0 file contains the Backup Database, which records configuration information used by the AFS Backup System along with cross- indexed records of the tapes created and volumes dumped using the Backup System commands. The bdb.DBSYS1 file is a log file in which the Backup Server (buserver process) logs each database operation before performing it. When an operation is interrupted, the Backup Server replays the log to complete the operation. Both files are in binary format and reside in the /var/lib/openafs/db directory on each database server machine that runs the Backup Server. When the Backup Server starts or restarts on a given machine, it establishes a connection with its peers and verifies that its copy of the bdb.DB0 file matches the copy on the other database server machines. If not, the Backup Servers use AFS's distributed database technology, Ubik, to distribute to all of the machines the copy of the database with the highest version number. Use the commands in the backup suite to administer the Backup Database. It is advisable to create a backup copy of the bdb.DB0 file on tape on a regular basis, using the UNIX tar command or another local disk backup utility. SEE ALSO
backup(8), backup_savedb(8), buserver(8) COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 BDB.DB0(5)

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