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)
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.

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