Amanda-Users

[Amanda-users] amcheckdump output - questions :)

2008-11-05 11:58:10
Subject: [Amanda-users] amcheckdump output - questions :)
From: rory_f <amanda-forum AT backupcentral DOT com>
To: amanda-users AT amanda DOT org
Date: Wed, 05 Nov 2008 11:53:03 -0500

Jon LaBadie wrote:
> On Wed, Nov 05, 2008 at 09:39:36AM -0500, rory_f wrote:
> 
> > 
> > the question again then i guess?
> > 
> > hi guys.
> > 
> > we're run amcheckdump on a backup we just did and it has given us a few 
> > outputs we're not sure about -whether it is tar being non-understanding of 
> > a backup using spanned tapes, or something else? we're a bit lost so 
> > hopefully someone can help
> > 
> > ps. ignore the file paths below, i just changed them to cover our 
> > hostname/directories.
> > 
> > 
> > ..20081029235711 level 0 part 4 on tape AmaTor-007 file #1
> > "/dev/nst0" uses deprecated device naming convention;
> > using "tape:/dev/nst0" instead.
> > /bin/gtar: Read 2048 bytes from -
> > /bin/gtar: Unexpected EOF in archive
> > /bin/gtar: Error is not recoverable: exiting now
> > Validation process returned 2 (full status 512)
> > 
> 
> As above, a good number of the error messages were generated
> by /bin/gtar itself.  Is it possible that the backups were
> made with one version of gnutar and amcheckdump is calling
> a different one with some incompatibilities?
> 
> Nah, that never happens ;)
> 
> jl
> 
> 
> 
> > using '/bin/gtar tf - > /tmp/amanda_amcheckdump && cat > 
> > /tmp/amanda_amcheckdump'.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 5 on tape AmaTor-007 file #2
> > Continuing with previously started validation process.
> > Error reading 32768 bytes from /dev/nst0: Input/output error
> > Error reading device or writing data to validation command.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 1 on tape AmaTor-007 file #3
> > Could not seek to file 3 of volume AmaTor-007.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 2 on tape AmaTor-007 file #4
> > Details of dump at file 4 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 3 on tape AmaTor-007 file #5
> > Details of dump at file 5 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 4 on tape AmaTor-007 file #6
> > Details of dump at file 6 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 5 on tape AmaTor-007 file #7
> > Details of dump at file 7 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 6 on tape AmaTor-007 file #8
> > Details of dump at file 8 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 7 on tape AmaTor-007 file #9
> > Details of dump at file 9 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 8 on tape AmaTor-007 file #10
> > Details of dump at file 10 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 9 on tape AmaTor-007 file #11
> > Details of dump at file 11 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 10 on tape AmaTor-007 file #12
> > Details of dump at file 12 of volume AmaTor-007 do not match logfile.
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 11 on tape AmaTor-008 file #1
> > "/dev/nst0" uses deprecated device naming convention;
> > using "tape:/dev/nst0" instead.
> > using '/bin/gtar tf - > /tmp/amanda_amcheckdump && cat > 
> > /tmp/amanda_amcheckdump'.
> > /bin/gtar: This does not look like a tar archive
> > /bin/gtar: Skipping to next header
> > /bin/gtar: Archive contains obsolescent base-64 headers
> > Validating image xxxx.com:/array/sata-1/.../SHOTS/something/ datestamp 
> > 20081029235711 level 0 part 12 on tape AmaTor-008 file #2
> > Continuing with previously started validation process.
> > /bin/gtar: Error exit delayed from previous errors
> > Validation process returned 2 (full status 512)
> > 
> > 
> > Whats the easiest way to figure out what file(s) the error is refering to? 
> > And/Or is it really something to worry about.
> > 
> > What about the last error, validation process returned 2? What does this 
> > mean? is there any way to run a check on the tape itself, and not the whole 
> > backup again, to save time?
> > 
> > Thanks.
> > 
> > +----------------------------------------------------------------------
> > |This was sent by rory < at > mrxfx.com via Backup Central.
> > |Forward SPAM to abuse < at > backupcentral.com.
> > +----------------------------------------------------------------------
> > 
> > 
> > 
> > 
> > > 
> > > > End of included message <<<
> > > > 
> > > 
> > 
> 
> -- 
> Jon H. LaBadie                  jon < at > jgcomp.com
> JG Computing
> 12027 Creekbend Drive         (703) 787-0884
> Reston, VA  20194             (703) 787-0922 (fax)



Um, haha. its all on the same machine. i dont think thats the case.  Im 
actually finishing up a backing up a 6tb project right now using 
tape_splitsize, and perhaps from now on i wont use it. we have a system in 
place to breakdown folder sizes for our whole file system here, so using just 
single tapes and doing root-tar whilst figuring out tape capacities ourself 
isnt actually out of the question.

Thanks for all the input.

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