Bacula-users

[Bacula-users] No tar for my tape drive!?!? SAS tape library help...

2008-10-31 14:18:47
Subject: [Bacula-users] No tar for my tape drive!?!? SAS tape library help...
From: Michael Kahle <gnunix AT yahoo DOT com>
To: Bacula Users <bacula-users AT lists.sourceforge DOT net>
Date: Fri, 31 Oct 2008 11:13:14 -0700 (PDT)
Any help here would be wonderful.  tar will not work on my tape drive!  
Weirdness...  Here is some background.

I recently purchased a new IBM TS2900 Autoloader:
http://www-03.ibm.com/systems/storage/tape/ts2900/index.html

I have hooked up this via an Adaptec SAS 58300:
http://www.adaptec.com/en-US/support/sas/sas/SAS-58300/

After some rough patches getting the Adaptec card to even work.  I built a 
custom kernel (2.6.27.4)
with support for this card.  I also upgraded my backup system to lenny
because I needed some new functionality out of initramfs to load the
firmware for this card.

> cat /proc/scsi/scsi
Attached devices:
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: ULT3580-HH4      Rev: 85V8
  Type:   Sequential-Access                ANSI  SCSI revision: 03
Host: scsi2 Channel: 00 Id: 00 Lun: 01
  Vendor: IBM      Model: 3572-TL          Rev: 0003
  Type:   Medium Changer                   ANSI  SCSI revision: 03

> lsscsi
[2:0:0:0]    tape    IBM      ULT3580-HH4      85V8  /dev/st0
[2:0:0:1]    mediumx IBM      3572-TL          0003  /dev/sch0

So far so good.

> mtx -f /dev/sg3 status shows:
  Storage Changer /dev/sg3:1 Drives, 9 Slots ( 0 Import/Export )
Data Transfer Element 0:Empty
      Storage Element 1:Full :VolumeTag=389ADOL4
      Storage Element 2:Full :VolumeTag=385ADOL4
      Storage Element 3:Full :VolumeTag=386ADOL4
      Storage Element 4:Empty
      Storage Element 5:Full :VolumeTag=387ADOL4
      Storage Element 6:Empty
      Storage Element 7:Full :VolumeTag=388ADOL4
      Storage Element 8:Empty
      Storage Element 9:Full :VolumeTag=CLNU94L1

Very nice.  Let's move a tape into the drive.

> mtx -f /dev/sg3 load 2
Loading media from Storage Element 2 into drive 0...done

Ok.  Now lets rewind the tape.

> mt -f /dev/nst0 rewind

No errors.  Good.  Do we have a tape in the drive?  Let's make sure.

> mt -f /dev/nst0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x46 (LTO-4).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN

Looks good.  Time for a sample backup.

> cd /backup/scripts
> ls -l
total 44
-rwxr--r-- 1 root root  623 2006-11-14 03:14 backup2tape.sh
-rwxr--r-- 1 root root 1862 2007-02-06 15:43 backupMichael.sh
-rwxr-xr-x 1 root root 6763 2007-10-18 23:58 backupNetwork.sh
-rwx------ 1 root root 3824 2008-08-26 20:36 backupNetworkTemp.sh
-rwxr-xr-x 1 root root 1035 2008-01-01 20:03 backupVantageYE.sh
-rwxr-xr-x 1 root root  752 2006-10-24 19:18 exclude
lrwxrwxrwx 1 root root   15 2005-12-14 18:57 logs -> /var/log/backup
-rwx------ 1 root root 7137 2008-10-04 19:41 newNetworkBackup.sh
-rwxrwxrwx 1 root root 2413 2007-01-04 00:04 testBackupCapitol.sh
-rwxr-xr-x 1 root root  874 2005-12-09 21:10 z_backupall
> tar cvf /dev/nst0 . 
./
./exclude
./logs
./z_backupall
./backup2tape.sh
./backupNetwork.sh
tar: /dev/nst0: Cannot write: Invalid argument
tar: Error is not recoverable: exiting now

HUH?  What happened?

> dmesg | tail
st0: Sense Key : Aborted Command [current] 
st0: Add. Sense: Initiator response timeout
st0: Can't set default compression.

> tail /var/log/syslog
Oct 31 13:01:51 backup kernel: st0: Sense Key : Aborted Command [current] 
Oct 31 13:01:51 backup kernel: st0: Add. Sense: Initiator response timeout
Oct 31 13:01:51 backup kernel: st0: Can't set default compression.

Any
thoughts on this?  Is there some kind of SAS module I need to have
installed?  I should be able to use this SAS device just as I use any
other SCSI device, correct?

Thanks for your time.

Michael


      

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