Bacula-users

[Bacula-users] Quantum Scalar i40 and second tape drive

2010-02-12 11:02:42
Subject: [Bacula-users] Quantum Scalar i40 and second tape drive
From: Daniel Kamm <ylz AT ylz DOT ch>
To: bacula-users AT lists.sourceforge DOT net
Date: Fri, 12 Feb 2010 16:59:46 +0100
Dear all,

I need some hints, ideas whatever. I have a Quantum Scalar i40 with two 
separate LTO-4 SAS drives. I've conneced the drives with two SAS cables 
to two separate SAS controller within the backup server.

# cat /proc/scsi/scsi
Attached devices:
Host: scsi4 Channel: 00 Id: 00 Lun: 00
   Vendor: HP       Model: Ultrium 4-SCSI   Rev: U51Z
   Type:   Sequential-Access                ANSI  SCSI revision: 05
Host: scsi4 Channel: 00 Id: 00 Lun: 01
   Vendor: QUANTUM  Model: Scalar i40-i80   Rev: 100G
   Type:   Medium Changer                   ANSI  SCSI revision: 03
Host: scsi5 Channel: 00 Id: 00 Lun: 00
   Vendor: HP       Model: Ultrium 4-SCSI   Rev: U51Z
   Type:   Sequential-Access                ANSI  SCSI revision: 05

So far, so good, but mtx is not willing to see the second drive:

# mtx -f /dev/sg1 status
   Storage Changer /dev/sg1:1 Drives, 29 Slots ( 5 Import/Export )
Data Transfer Element 0:Full (Storage Element 20 Loaded):VolumeTag = 
MZ2019
       Storage Element 1:Empty:VolumeTag=
       Storage Element 2:Empty:VolumeTag=
  [..]

And mtx is not willing to load a tape into the second drive:

# mtx -f /dev/sg1 load 22 1
illegal <drive-number> argument '1' to 'load' command

Any ideas what I did wrong? Any hints where I can start debugging? 
Because since Baculas mtx-changer is using mtx, I think I am not able to 
use the second drive.

Thanks for your help and have a nice weekend,
  - Dan

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