Hi,

while looking for my verify problems, I noticed that my full backup had errors
at the end of the first tape but terminated with status OK. Therefor I noticed
this error very late.

/var/log/kern.log
Aug  5 06:00:29 VU0EM005 kernel: st0: Current: sense key: Aborted Command
Aug  5 06:00:29 VU0EM005 kernel: Additional sense: Data phase error


05-Aug 02:13 VU0EM005: Start Backup JobId 416, Job=VU0EM003.2007-08-05_00.05.01
05-Aug 02:13 VU0EM005: Spooling data ...
VU0EM003:      /home is a different filesystem. Will not descend from / into 
/home
VU0EM003:      /public is a different filesystem. Will not descend from / into 
/public
VU0EM003:      /lib/init/rw is a different filesystem. Will not descend from / 
into /lib/init/rw
VU0EM003:      /server is a different filesystem. Will not descend from / into 
/server
05-Aug 04:44 VU0EM005: User specified spool size reached.
05-Aug 04:44 VU0EM005: Writing spooled data to Volume. Despooling 
450,971,582,471 bytes ...
05-Aug 06:00 VU0EM005: VU0EM003.2007-08-05_00.05.01 Error: block.c:569 Write 
error at 405:11595 on device "LTO3" (/dev/ULTRIUM-TD3). 
ERR=Eingabe-/Ausgabefehler.
05-Aug 06:00 VU0EM005: VU0EM003.2007-08-05_00.05.01 Error: block.c:317 Volume 
data error at 405:4294967295!
Block checksum mismatch in block=5235094 len=64512: calc=2a90e8e7 blk=20b379e5
05-Aug 06:00 VU0EM005: VU0EM003.2007-08-05_00.05.01 Error: Re-read last block 
at EOT failed. ERR=block.c:317 Volume data error at 405:4294967295!
Block checksum mismatch in block=5235094 len=64512: calc=2a90e8e7 blk=20b379e5
05-Aug 06:00 VU0EM005: End of medium on Volume "06D128L3" Bytes=404,723,386,368 
Blocks=6,273,613 at 05-Aug-2007 06:00.
05-Aug 06:02 VU0EM005: Using Volume "06D138L3" from 'Scratch' pool.
05-Aug 06:02 VU0EM005: 3307 Issuing autochanger "unload slot 9, drive 0" 
command.
05-Aug 06:03 VU0EM005: 3304 Issuing autochanger "load slot 19, drive 0" command.
05-Aug 06:03 VU0EM005: 3305 Autochanger "load slot 19, drive 0", status is OK.
05-Aug 06:03 VU0EM005: 3301 Issuing autochanger "loaded? drive 0" command.
05-Aug 06:03 VU0EM005: 3302 Autochanger "loaded? drive 0", result is Slot 19.
05-Aug 06:03 VU0EM005: Recycled volume "06D138L3" on device "LTO3" 
(/dev/ULTRIUM-TD3), all previous data lost.
05-Aug 06:03 VU0EM005: New volume "06D138L3" mounted on device "LTO3" 
(/dev/ULTRIUM-TD3) at 05-Aug-2007 06:03.
05-Aug 06:31 VU0EM005: Despooling elapsed time = 01:44:20, Transfer rate = 
72.04 M bytes/second
05-Aug 06:42 VU0EM005: Spooling data again ...
05-Aug 08:12 VU0EM005: Job write elapsed time = 05:55:07, Transfer rate = 33.16 
M bytes/second
05-Aug 08:12 VU0EM005: Committing spooled data to Volume "06D138L3". Despooling 
256,418,397,693 bytes ...
05-Aug 09:13 VU0EM005: Despooling elapsed time = 01:01:30, Transfer rate = 
69.49 M bytes/second
05-Aug 09:20 VU0EM005: Alert: smartctl version 5.36 [x86_64-unknown-linux-gnu] 
Copyright (C) 2002-6 Bruce Allen
05-Aug 09:20 VU0EM005: Alert: Home page is http://smartmontools.sourceforge.net/
05-Aug 09:20 VU0EM005: Alert:
05-Aug 09:20 VU0EM005: Alert: TapeAlert: OK
05-Aug 09:20 VU0EM005: Alert:
05-Aug 09:20 VU0EM005: Alert: Error Counter logging not supported
05-Aug 09:20 VU0EM005: Alert:
05-Aug 09:20 VU0EM005: Alert: Non-medium error count:        0
05-Aug 09:20 VU0EM005: Sending spooled attrs to the Director. Despooling 
600,205,128 bytes ...
05-Aug 09:37 VU0EM005: Bacula 2.0.3 (06Mar07): 05-Aug-2007 09:37:43
05-Aug 09:37 VU0EM005: Bacula 2.0.3 (06Mar07): 05-Aug-2007 09:37:43
  JobId:                  416
  Job:                    VU0EM003.2007-08-05_00.05.01
  Backup Level:           Full
  Client:                 "VU0EM003" 2.0.2 (28Jan07) 
x86_64-unknown-linux-gnu,debian,4.0
  FileSet:                "VU0EM003" 2007-06-12 00:05:01
  Pool:                   "Full" (From Run pool override)
  Storage:                "NEC-T40A" (From Job resource)
  Scheduled time:         05-Aug-2007 00:05:00
  Start time:             05-Aug-2007 02:13:49
  End time:               05-Aug-2007 09:37:43
  Elapsed time:           7 hours 23 mins 54 secs
  Priority:               10
  FD Files Written:       1,631,258
  SD Files Written:       1,631,258
  FD Bytes Written:       706,308,678,026 (706.3 GB)
  SD Bytes Written:       706,666,406,084 (706.6 GB)
  Rate:                   26519.1 KB/s
  Software Compression:   None
  VSS:                    no
  Encryption:             no
  Volume name(s):         06D128L3|06D138L3
  Volume Session Id:      106
  Volume Session Time:    1184053226
  Last Volume Bytes:      369,532,025,856 (369.5 GB)
  Non-fatal FD errors:    0
  SD Errors:              0
  FD termination status:  OK
  SD termination status:  OK
  Termination:            Backup OK



I've rerun the btape test (test/fill). No problems. At the moment I'm running
the full backup to the same tapes again. The end of the first tape was detected
without Block checksum mismatch.

Maybe it was just bad luck, but why did the job terminate with OK? I got no
mail, because bacula is configured to only send mail on error.

Ralf

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