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Re: [Bacula-devel] recover from invalid tape


On Oct 16, 2008, at 6:46 PM, marco.lertora@xxxxxxxxxxxx wrote:

> Hi all,
>
>     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.


You really should try this on the users list first.

If you have already done this, please reply to the devel list again and
include a URL pointing into http://marc.info so we can see the
original conversation.

Thank you.


>
>
> here the beginning of strings' output command on device in position 0:
>
>> BB02
>> 4Bacula 1.0 immortal
>> w2k3-ap-nas1.porto.laspezia.it-data-pool
>> Backup
>> BACKUP w2k3-ap-nas1.porto.laspezia.it-data
>> w2k3-ap-nas1.porto.laspezia.it-fd
>> BACKUP_w2k3-ap-nas1.porto.laspezia.it-data.2008-05-23_23.05.15
>> w2k3-ap-nas1.porto.laspezia.it-data-fileset
>
>
> 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.
>
> Regards
> Marco
>
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-- 
Dan Langille
http://langille.org/





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