OK.  I am learning from this. The number of 1k blocks on the first stored file on this tape is actually 384 and not 352.  I should have looked at the taper output and not the dumper output.   I issue the following multiple times:

mt rewind
mt -f=/dev/tape_norewind fsf 1
dd if=/dev/tape_norewind of=./first_file bs=1k count=384

the number of records read returned is

64
288
384
384
64
64
384

when it should be 384 every time !  Does this not smell of a hardware problem ?  Must be the scsi card ?
If so, why don't I have other scsi errors on the hard drives ?

Any ideas ?

On Sun, 2003-07-20 at 05:00, Gregor Ibic wrote:

try to read the tape (or chunk - fsf) with dd
dd if=/dev/nst0 of=/XXXX bs=1024 count=NNNN
where NNN is greater than your backup job/disk entry
and see what happens

 
i restored some valueable tape (MTF formated) reading this way and putting the pieces together.
 
regards,
gregor

-- 
James D. Freels, Ph.D.
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