CentOS - Apr 2006 - Multiple LUN support

Hi all...

I have a scsi Tape library.  Centos only sees the tape drive portion of
the library.  I need to enable Multiple LUN support to get the library
and tape drive recognized.  

I am looking for some help enabling multiple lun support in Centos 4.  I
had a procedure on how to do this in the 2.4 kernel but it doesn't seem
to work in the 2.6.  Any help would be appreciated.

Config:

Standard intel server board.
p4 processor
(3) 3-ware controllers
Lsi Logic u320 scsi card
External SCSI tape library.

Worked before on a Whitebox linux 2.4 kernel, just added:
options scsi_mod "max_scsi_luns=16"
to /etc/modules.conf and rebuilt the initrd image, then reboot.  All
worked fine.  But Whitebox is crap and was giving me probs and also want
everything standardized on CentOS!

Thanks!

On Wed, 12 Apr 2006 at 12:03pm, Mark Elam wrote
> Worked before on a Whitebox linux 2.4 kernel, just added:
> options scsi_mod "max_scsi_luns=16"
> to /etc/modules.conf and rebuilt the initrd image, then reboot.  All
> worked fine.  But Whitebox is crap and was giving me probs and also want
> everything standardized on CentOS!
[jlb at chaos ~]$ modinfo scsi_mod
filename: 
/lib/modules/2.6.9-34.ELsmp/kernel/drivers/scsi/scsi_mod.ko
description:    SCSI core
license:        GPL
parm:           scsi_logging_level:a bit mask of logging levels
parm:           max_luns:last scsi LUN (should be between 1 and 2^32-1)
                 ^^^^^^^^

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University

Quoting Mark Elam <melam at mobilygen.com>:
> Hi all...
>
> I have a scsi Tape library.  Centos only sees the tape drive portion of
> the library.  I need to enable Multiple LUN support to get the library
> and tape drive recognized.
>
> Worked before on a Whitebox linux 2.4 kernel, just added:
> options scsi_mod "max_scsi_luns=16"
> to /etc/modules.conf and rebuilt the initrd image, then reboot.  All
The option name changed in 2.6 kernels.  It's now called
"scsi_luns".
You'd need to put it into /etc/modprobe.conf these days too 
(modules.conf doesn't exist anymore).

-- 
See Ya' later, alligator!
http://www.8-P.ca/