I recently found that all my monthly backup tapes seem to be in a non-restorable state, and I'm kinda starting to get a little freaked out. Any advice or suggestions would be gratefully welcomed.
The backup setup in question is an HP Proliant DL380 G4 using a single drive HP StorageWorks Ultrium 960 and imation LTO3 tapes. All tapes were purchased in the last year, and they have only been written to once each. All backups were done with single job, single tape backup sets (no backups than run across 2 or more tapes). The same symptoms are consistent across all of my backup tapes older than 3 months old, and those symptoms are:
1) attempts to restore data from a tape result in a warning message saying that necessary files from the Active Family are offline. The tape in the drive ejects, and ntbackup refuses to use the tape even after reinsertion. All the backup jobs were done with single tape families.
2) I can traverse the files on the backup tapes thanks to the local cached catalogs of the backups, but when I try to run a Catalog job on one of the tapes, it errors saying their was an unexpected inconsistency on the requested media
The files that are on the tapes are backup to disk files that are several GB each.
After I first noticed the issue, I did a test backup using the same files and steps as always, but for reasons unknown I am able to restore from the new test backup tape without any issue.
-Un-checking the "use the catalog on the media to speed up restorations" option -> no effect
-Switching the SCSI ports that the tape drive and the MSA harddisk array are connected through -> no effect
-Purchased a new tape drive cleaning catridge and cleaned the head -> no effect
-Ran 'rsm view /tlibrary and then rsm.exe refresh /lf"library name" to refresh RSM -> no effect
-Stopped the remote storage service, forced a recreate of the ntmsdata folder and rebooted the server -> all previously cataloged media disappeared but attempts to catalog my backup tapes fail the same as outlined above.
-Cataloging media on a separate Win 2003 server using NTBackup -> Catalog fails same as above
-Cataloging media on a separate Win 2003 server using BackupExec 2010 -> Fails saying "the blocksize being used is incorrect"
- Tried changing the blocksize settings in BE 2010 -> no effect
Any advice would be greatly appreciated.