[Bacula-users] end of tape error issue and file rearchived issue

Hi all,

I've been running bacula for more than a month now and it works quite smoothly except for two issues:
    1: some files are rearchived whereas I have no reason to believe they have changed. Could this be due to the use of SHA1 instead of MD5 ? Does it rearchive if the files have only been accessed but not modified ?
    2: I get the following message when I reach the end of a tape (concistently) and it's worying me seriously as for archive space issues, I don't have another copy of the data (for legal reasons I need to archive a petabyte of data but I don't have the budget to put that on HDDs). The rest seems fine but I am afraid I could loose data that way.

        Error: Re-read last block at EOT failed. ERR=block.c:1029 Read zero bytes at 818:0 on device "LTO5" (/dev/nst0).

I'm running debian stable with bacula 5.0 and a DELL TL2000

Any ideas ?

Best,

Gnewbee


P.S.:
Here is the full log:




alzymr-dir Start Backup JobId 194, Job=BackupRawData.2012-10-03_02.00.00_16
alzymr-sd 3307 Issuing autochanger "unload slot 2, drive 0" command.
alzymr-dir Using Device "LTO5"
alzymr-sd 3301 Issuing autochanger "loaded? drive 0" command.
 3302 Autochanger "loaded? drive 0", result: nothing loaded.
 3304 Issuing autochanger "load slot 8, drive 0" command.
alzymr-sd 3305 Autochanger "load slot 8, drive 0", status is OK.
alzymr-sd Volume "0008L5" previously written, moving to end of data.
alzymr-sd Ready to append to end of Volume "0008L5" at file=499.
 Spooling data ...
alzymr-sd User specified spool size reached.
 Writing spooled data to Volume. Despooling 536,870,965,297 bytes ...
alzymr-sd Despooling elapsed time = 02:21:11, Transfer rate = 63.37 M Bytes/second
alzymr-sd Spooling data again ...
alzymr-sd User specified spool size reached.
 Writing spooled data to Volume. Despooling 536,870,953,139 bytes ...
alzymr-sd End of Volume "0008L5" at 817:61543 on device "LTO5" (/dev/nst0). Write of 64512 bytes got -1.
alzymr-sd 
Error: Re-read last block at EOT failed. ERR=block.c:1029 Read zero bytes at 818:0 on device "LTO5" (/dev/nst0).
 End of medium on Volume "0008L5" Bytes=1,963,961,782,272 Blocks=30,443,355 at 03-Oct-2012 10:32.
 3307 Issuing autochanger "unload slot 8, drive 0" command.
alzymr-sd 3301 Issuing autochanger "loaded? drive 0" command.
 3302 Autochanger "loaded? drive 0", result: nothing loaded.
 3304 Issuing autochanger "load slot 9, drive 0" command.
alzymr-sd 3305 Autochanger "load slot 9, drive 0", status is OK.
alzymr-sd Wrote label to prelabeled Volume "0009L5" on device "LTO5" (/dev/nst0)
 New volume "0009L5" mounted on device "LTO5" (/dev/nst0) at 03-Oct-2012 10:35.
alzymr-sd Despooling elapsed time = 02:08:25, Transfer rate = 69.67 M Bytes/second
alzymr-sd Spooling data again ...
alzymr-sd Job write elapsed time = 11:20:01, Transfer rate = 36.94 M Bytes/second
 Committing spooled data to Volume "0009L5". Despooling 434,891,946,536 bytes ...
alzymr-sd Despooling elapsed time = 01:40:52, Transfer rate = 71.85 M Bytes/second
alzymr-sd Sending spooled attrs to the Director. Despooling 91,514,957 bytes ...
alzymr-dir Bacula alzymr-dir 5.0.2 (28Apr10): 03-Oct-2012 15:08:10
  Build OS:               x86_64-pc-linux-gnu debian squeeze/sid
  JobId:                  194
  Job:                    BackupRawData.2012-10-03_02.00.00_16
  Backup Level:           Incremental, since=2012-10-02 02:00:54
  Client:                 "alzymr-fd" 5.0.2 (28Apr10) x86_64-pc-linux-gnu,debian,squeeze/sid
  FileSet:                "tvRawData" 2012-08-24 13:32:44
  Pool:                   "tvPool" (From Job resource)
  Catalog:                "MyCatalog" (From Client resource)
  Storage:                "LTO5Tape" (From Pool resource)
  Scheduled time:         03-Oct-2012 02:00:00
  Start time:             03-Oct-2012 02:00:54
  End time:               03-Oct-2012 15:08:10
  Elapsed time:           13 hours 7 mins 16 secs
  Priority:               10
  FD Files Written:       272,522
  SD Files Written:       272,522
  FD Bytes Written:       1,507,183,267,823 (1.507 TB)
  SD Bytes Written:       1,507,227,378,742 (1.507 TB)
  Rate:                   31907.5 KB/s
  Software Compression:   None
  VSS:                    no
  Encryption:             no
  Accurate:               no
  Volume name(s):         0008L5|0009L5
  Volume Session Id:      192
  Volume Session Time:    1345810643
  Last Volume Bytes:      650,761,574,400 (650.7 GB)
  Non-fatal FD errors:    0
  SD Errors:              1
  FD termination status:  OK
  SD termination status:  OK
  Termination:            Backup OK -- with warnings
 Begin pruning Jobs older than 5 years .
 No Jobs found to prune.
 Begin pruning Jobs.
 No Files found to prune.
 End auto prune.

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