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[Bacula-devel] recover from invalid tape
I need to recover some files from a tape but, after loading, bacula
cannot mount it.
Opening the device with hexer I find the tape starting with a
session/job header instead a volume header. So, the volume header is
missing and bacula can't recognize the tape.
here the beginning of strings' output command on device in position 0:
> 4Bacula 1.0 immortal
> BACKUP w2k3-ap-nas1.porto.laspezia.it-data
Then, looking in old email logs, I've notice that
w2k3-ap-nas1.porto.laspezia.it-data.2008-05-23_23.05.15 is not the 1st
backup on the volume... It is the 9th!
> Build OS: Linux Cross-compile Win32
> JobId: 9
> Job: BACKUP_w2k3-ap-nas1.porto.laspezia.it-data.2008-05-23_23.05.15
> Backup Level: Incremental, since=2008-05-22 23:05:02
> Client: "w2k3-ap-nas1.porto.laspezia.it-fd" 2.2.9-b6 (06Apr08) Linux,Cross-compile,Win32
> FileSet: "w2k3-ap-nas1.porto.laspezia.it-data-fileset" 2008-05-20 09:59:27
> Pool: "w2k3-ap-nas1.porto.laspezia.it-data-pool" (From Job resource)
> Storage: "TapeDrive" (From Job resource)
> Scheduled time: 23-May-2008 23:05:00
> Start time: 23-May-2008 23:05:02
> End time: 23-May-2008 23:56:31
> Elapsed time: 51 mins 29 secs
> Priority: 10
> FD Files Written: 9,186
> SD Files Written: 9,186
> FD Bytes Written: 45,804,354,704 (45.80 GB)
> SD Bytes Written: 45,806,468,610 (45.80 GB)
> Rate: 14828.2 KB/s
> Software Compression: None
> VSS: yes
> Storage Encryption: no
> Volume name(s): w2k3-ap-nas1.porto.laspezia.it-data-0001
> Volume Session Id: 9
> Volume Session Time: 1211270345
> Last Volume Bytes: 551,417,416,704 (551.4 GB)
> Non-fatal FD errors: 0
> SD Errors: 0
> FD termination status: OK
> SD termination status: OK
> Termination: Backup OK
The tape library is "HP Ultrium-3 400/800".
Really no idea how I reach this point.... But it was my 1st windows
backup with bacula, so [my] human errror is the really probable!!
My objective is recover a file from Job 14 [It should be in this volume]
but from bconsole, with bls or bextract I can't get anythings good,
because they looking for a valid volume header... and I miss it.
Is there any tool to low-level recover files from a tape regardless
volume or jobs?
I would try to label the tape again with the name written in logs:
w2k3-ap-nas1.porto.laspezia.it-data-0001. Do you think it could work?
Remember that my important job is not in the beginning of the tape so
lost data in the begin is not a problem.
Tnz 4 bacula.
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