All,

  I've recently setup Bacula on a MAC Xserve running Debian with an HP DLT VS 
160 drive attached.  I've since found that although backups work fine it cannot 
read from the tapes for a restore.

  Using the tests for Bacula I've found that I cannot get past the tar test.  
Again it appears to write to the tape fine but when I attempt to read the 
archive I get the following:

tar: This does not look like a tar archive
tar: Skipping to next header
tar: Error exit delayed from previous errors

If I attempt the btape test;

nas1-noc:~# btape -c /etc/bacula/bacula-sd.conf /dev/st0
Tape block granularity is 1024 bytes.
btape: butil.c:272 Using device: "/dev/st0" for writing.
btape: btape.c:338 open device "Drive-1" (/dev/st0): OK
*test

=== Write, rewind, and re-read test ===

I'm going to write 1000 records and an EOF
then write 1000 records and an EOF, then rewind,
and re-read the data to verify that it is correct.

This is an *essential* feature ...

btape: btape.c:795 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:469 Wrote 1 EOF to "Drive-1" (/dev/st0)
btape: btape.c:811 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:469 Wrote 1 EOF to "Drive-1" (/dev/st0)
btape: btape.c:820 Rewind OK.
21-Aug 09:47 btape: btape Error: block.c:253 Volume data error at 0:0! Wanted 
ID: "BB02", got "BC02". Buffer discarded.
btape: btape.c:832 Read block 1 failed! ERR=Input/output error

Some other info:

nas1-noc:~# mt -f /dev/st0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x50 (no translation).
Soft error count since last status=0
General status bits on (41010000):
 BOT ONLINE IM_REP_EN

nas1-noc:~# tapeinfo -f /dev/sg0
Product Type: Tape Drive
Vendor ID: 'HP   !  '
Product ID: 'DLT VS160    !  '
Revision: '2400'
Attached Changer: No
Invalid tapealert page: 262

dmesg:

 target1:0:5: asynchronous
  Vendor: HP   !    Model: DLT VS160    !    Rev: 2400
  Type:   Sequential-Access                  ANSI SCSI revision: 02
 target1:0:5: Beginning Domain Validation
 target1:0:5: Domain Validation Initial Inquiry Failed
 target1:0:5: Ending Domain Validation

Any help would be appreciated.

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