Backup Exec Replication & Recovery
- 12 years ago
The Opt Dup configuration gives two choices.
1) Original backup done to MMS/MBE, OptDup to CAS. In which case if CAS (or link to CAS goes down your initial backups may not run as the MBE depends to a certain extent on the CAS database
2) Original Backup done to CAS, OptDeup to MMS/MBE. In this scenario your initial backups should always run, the duplicates will fail if the WAN link or MMS/MBE is unavailable. Again the CAS going unavilable would also kill your backups,
In either scenario you could spend time if a failure happens, doing a reconfigure of whichever server is still running back to stand alone mode, which could then be used for Backups or Restores (assuming your backed up data is available. However you would probably be better off spending time fixing the problem and then just re-run the jobs once fixed.
Basically this is not a multi-master model so cannot achive full resilience and some manual labour will always be needed to recover from a lost media server (or WAN link affecting the backup environment.)