SCSI Tape Drive - LUN Support

[Kenneth Goodwin]

-----Original Message-----
From: redhat-install-list-bounces at redhat.com
[mailto:redhat-install-list-bounces at redhat.com]On Behalf Of
Darryl W. DeLao Jr.
Sent: Wednesday, August 25, 2004 9:44 AM
To: rhn-users at redhat.com; redhat-list at redhat.com;
redhat-install-list at redhat.com
Subject: SCSI Tape Drive - LUN Support


Hello everyone,

I recently installed an Adaptec SCSI Card in my PowerEdge
2650.  Attached to the Adaptec card is 1 DLT VS160 Drive.
When I fire up the server, the SCSI BIOS loads and detects
everything perfectly.  When RHEL ES 3.0 loads, it does not
see the DLT Drive.  When I do a lsmod from the command line,
I see my RAID and the CD-ROM drive listed.  Upon checking
the /etc/modules.conf file I see the following listed:

alias eth0 e1000
alias eth1 tg3
alias eth2 tg3
alias scsi_hostadapter aacraid
alias usb-controller usb-ohci
alias scsi_hostadapter1 aic7xxx


Upon doing a modprobe aic7xxx from the command line, I see
this after doing cat /proc/scsi/scsi

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: DELL     Model: PERCRAID RAID5   Rev: V1.0
  Type:   Direct-Access                    ANSI SCSI
revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: TEAC     Model: CD-224E          Rev: K.9A
  Type:   CD-ROM                           ANSI SCSI
revision: 02

==== Please dont post in HTML formats =============

The probable cause of your problem is that the SCSI
controller
and the CDROM drive
both appear to be set to the same SCSI ID of 0, Jump and
adjust the scsi id of the cdrom so
it is not  0 or 6. It may also be that the CDROM and the
tape drive are both set to 6 (cause of your original
problem) and that the cdrom is taking itself off-line
when it detects the ID conflict.

========================================================


Host: scsi2 Channel: 00 Id: 06 Lun: 00
  Vendor: QUANTUM  Model: DLT VS160        Rev: 1E00
  Type:   Sequential-Access                ANSI SCSI
revision: 02

The DLT is now listed and I am now able to fire up the
software and use the DLT.  However, now I can not use the
CD-ROM drive.  I am unable to mount it or anything.  When I
reboot, everything resets and I have to modprobe aic7xxx
again in order to use the DLT.  Does anyone know what I need
to do or enable or what not so that I can use both the
CD-ROM and the DLTVS160 after a reboot without having to
issue a command to use the DLTVS160?

Thanks,
Darryl