[Dump-users] scsi parity errors when dump-ing

[Kolev, N. <NK...@tr...>]

Hi,
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I used to get these every once in a while, but now I am getting it every
time I try to do a dump. The confusing part is that when I was getting
them very rarely the problem magically seemed to go away, I mean I would
see a couple of times and then everything will be fine. The tape drive
(Quantum SDLT320) was just recently cleaned, and the tapes are brand
new.
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here's what happens when I dump (I only see the non-DUMP messages on
tty1, otherwise they can be seen in the kernel print buffer):
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/usr/sbin/dump 0aqfL /dev/nst0 SCOUT_BACKUP /app/solid
  DUMP: Date of this level 0 dump: Wed Oct 26 01:00:47 2005
  DUMP: Dumping /dev/md2 (/app/solid) to /dev/nst0
  DUMP: Label: SCOUT_BACKUP
  DUMP: Writing 10 Kilobyte records
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 54354 blocks.
  DUMP: Volume 1 started with block 1 at: Wed Oct 26 01:00:56 2005
  DUMP: dumping (Pass III) [directories]
  DUMP: dumping (Pass IV) [regular files]
SCSI Error: (1:6:0) Status=3D02h (CHECK CONDITION)
 Key=3DBh (ABORTED COMMAND); FRU=3D00h
 ASC/ASCQ=3D47h/00h ""
 CDB: 0A 00 00 28 00 00 - "WRITE(6)"
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st0: Error with sense data: Current st09:00: sense key Aborted Command
Additional sense indicates Scsi parity error
  DUMP: write error 14440 blocks into volume 1: Input/output error
  DUMP: Do you want to rewrite this volume? - forced abort
  DUMP: The ENTIRE dump is aborted.
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Any help on how to doctor or at least understand this will be greatly
appreciated.
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Thanks,
-nik




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