Hello all,

I'm getting errors on a HP DAT-72 external SCSI drive I'm trying to set up. I'm hoping I can get some idea of what is going on and if it is correctable. I'm running Bacula 2.0.3 on Fedora Core 6. Bacula backs-up to disk just fine.

Checking /proc/scsi:
[EMAIL PROTECTED] bacula]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 06 Lun: 00
  Vendor: HP       Model: C7438A           Rev: ZP5A
  Type:   Sequential-Access                ANSI  SCSI revision: 03
 
Checking with "mt":
[EMAIL PROTECTED] bacula]# mt -f /dev/nst0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x47 (TR-5).
Soft error count since last status=0
General status bits on (41010000):
 BOT ONLINE IM_REP_EN
 
Testing with "btape":
[EMAIL PROTECTED] bacula]# btape DAT-72
Tape block granularity is 1024 bytes.
btape: butil.c:286 Using device: "DAT-72" for writing.
btape: btape.c:368 open device "DAT-72" (/dev/nst0): 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:825 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:499 Wrote 1 EOF to "DAT-72" (/dev/nst0)
btape: btape.c:841 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:499 Wrote 1 EOF to "DAT-72" (/dev/nst0)
btape: btape.c:850 Rewind OK.
06-Sep 14:15 btape: btape Error: block.c:317 Volume data error at 0:0!
Block checksum mismatch in block=0 len=64480: calc=40203cbc blk=b1d8a199
btape: btape.c:862 Read block 1 failed! ERR=Input/output error

Finally a test with "tar":
[EMAIL PROTECTED] bacula]# tar xvf /dev/nst0 /proj/Arch_Proj
tar: /dev/nst0: Cannot read: Cannot allocate memory
tar: At beginning of tape, quitting now
tar: Error is not recoverable: exiting now

I just noticed that /proc/scsi reports "
ANSI  SCSI revision: 03" and  mt status reports "SCSI 2 tape drive:". Is that an issue?

Any help here is appreciated! Thanks!

-- 
Tom Plancon
CAD/IS Manager
BKA Architects, Inc.
142 Crescent St.
Brockton, MA 02302
508-583-5603
[EMAIL PROTECTED]
 



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