Gary Danko wrote:

> On Dec 11, 2007 2:14 PM, Gary Danko < [EMAIL PROTECTED] 
> <mailto:[EMAIL PROTECTED]>> wrote:
> 
>     We're trying to set up a Dell 2950 with Slackware Linux 11 and
>     Bacula 2.2.6. The tape library is a Dell ML6020 with 4 IBM Ultrium
>     TD4s and 128 slots. These are SAS drives using the Fusion MPT SAS
>     Host driver 3.04.05 driver. The kernel is 2.6.23.
> 
>     dmesg shows that the library (ch0) and all four drives (st0-st3) are
>     recognized, but /dev/ch0 does not exist and only /dev/st0 and
>     /dev/st1 exist. Please see the attached dmesg output:
> 
>     SCSI Media Changer driver v0.25
>     Fusion MPT base driver 3.04.05
>     Copyright (c) 1999-2007 LSI Logic Corporation
>     Fusion MPT SAS Host driver 3.04.05
>     ACPI: PCI Interrupt 0000:0d:08.0[A] -> GSI 16 (level, low) -> IRQ 16
>     mptbase: Initiating ioc0 bringup
>     ioc0: LSISAS1068 B0: Capabilities={Initiator}
>     scsi1 : ioc0: LSISAS1068 B0, FwRev=000a3100h, Ports=1, MaxQ=366, IRQ=16
>     scsi 1:0:0:0: Sequential-Access IBM      ULTRIUM-TD4      74H5 PQ: 0
>     ANSI: 3
>     st 1:0:0:0: Attached scsi tape st0
>     st 1:0:0:0: st0: try direct i/o: yes (alignment 512 B)
>     scsi 1:0:1:0: Sequential-Access IBM      ULTRIUM-TD4      74H5 PQ: 0
>     ANSI: 3
>     st 1:0:1:0: Attached scsi tape st1
>     st 1:0:1:0: st1: try direct i/o: yes (alignment 512 B)
>     scsi 1:0:1:1: Medium Changer    ADIC     Scalar i500      400G PQ: 0
>     ANSI: 3
>     ch0: type #1 (mt): 0x1+1 [medium transport]
>     ch0: type #2 (st): 0x1000+122 [storage]
>     ch0: type #3 (ie): 0x10+6 [import/export]
>     ch0: type #4 (dt): 0x100+4 [data transfer]
>     ch0: dt 0x100: ID/LUN unknown
>     ch0: dt 0x101: ID/LUN unknown
>     ch0: dt 0x102: ID/LUN unknown
>     ch0: dt 0x103: ID/LUN unknown
>     ch0: INITIALIZE ELEMENT STATUS, may take some time ...
>     ch0: ... finished
>     ch 1:0:1:1: Attached scsi changer ch0
>     ACPI: PCI Interrupt 0000:10:08.0[A] -> GSI 16 (level, low) -> IRQ 16
>     mptbase: Initiating ioc1 bringup
>     ioc1: LSISAS1068 B0: Capabilities={Initiator}
>     scsi2 : ioc1: LSISAS1068 B0, FwRev=000a3100h, Ports=1, MaxQ=366, IRQ=16
>     scsi 2:0:0:0: Sequential-Access IBM      ULTRIUM-TD4      74H5 PQ: 0
>     ANSI: 3
>     st 2:0:0:0: Attached scsi tape st2
>     st 2:0:0:0: st2: try direct i/o: yes (alignment 512 B)
>     scsi 2:0:1:0: Sequential-Access IBM      ULTRIUM-TD4      74H5 PQ: 0
>     ANSI: 3
>     st 2:0:1:0: Attached scsi tape st3
>     st 2:0:1:0: st3: try direct i/o: yes (alignment 512 B)
> 
>     I have built mtx 1.3.11 and tried to run loaderinfo:
> 
>     [EMAIL PROTECTED]:/usr/src/linux# loaderinfo -f /dev/ch0
>     cannot open SCSI device '/dev/ch0' - No such file or directory
> 
>     And you can see st2 and st3 are MIA
> 
>     [EMAIL PROTECTED]:/usr/src/linux# ls -l /dev/st*
>     crw-r----- 1 root disk 9, 0 1994-07-18 09:05 /dev/st0
>     crw-r----- 1 root disk 9, 1 1994-07-18 09:05 /dev/st1
>     lrwxrwxrwx 1 root root    4 2007-11-27 01:52 /dev/stderr -> fd/2
>     lrwxrwxrwx 1 root root    4 2007-11-27 01:52 /dev/stdin -> fd/0
>     lrwxrwxrwx 1 root root    4 2007-11-27 01:52 /dev/stdout -> fd/1
>     [EMAIL PROTECTED]:/usr/src/linux#
> 
>     Any ideas why I am seeing this behavior?

 > Has anyone an idea where /dev/st2 and /dev/st3 may have disappeared to?
 > Look at my dmesg output and you will see all four drives active, but
 > only two appear in /dev

Isn't this a question better asked of the mailing lists for your 
particular OS?  AFAIK, this has to do with OS devices, and is not Bacula 
specific.

-- 
Dan Langille - http://www.langille.org/
BSDCan - The Technical BSD Conference: http://www.bsdcan.org/

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