[8316] in linux-scsi channel archive
Re: Problem
daemon@ATHENA.MIT.EDU (Eric Lee Green)
Wed Mar 8 17:03:20 2000
Message-ID: <38C6CD8D.49B1AA84@estinc.com>
Date: Wed, 08 Mar 2000 15:00:45 -0700
From: Eric Lee Green <eric@estinc.com>
MIME-Version: 1.0
To: hoot@patuxent-tech.com
Cc: linux-scsi@vger.rutgers.edu
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Hoot Thompson wrote:
> I'm working on a SAN infrastructure and I'm having difficulty getting
> SGI/Clariion RAID systems to be recognized by the Linux machines attached to
> the Brocade switch fabric. IRIX and NT boxes see the RAID just fine but the
> Linux boxes do not. The two SGI/Clariion SP wwn's show up in qlogic port
> database using the UNH driver. Later on however, the LUNs are recognized as
> generic scsi devices as opposed to scsi disks. It was suggested that
> perhaps the problem is in the scsi layer. BTW a Ciprico RAID attached to
> the fabric is seen by the Linux machines.
What does /proc/scsi/scsi say?
Do the controllers show up in /proc/scsi?
If you do a 'mtx -f /dev/sg<x> inquiry' (using the latest 'mtx' from
http://www.estinc.com/downloads/unsupported ), what does it report for
the device type? (Use /proc/scsi/scsi to figure out what to put for <x>
-- for example, the third device would be /dev/sgc ).
There *IS* one limitation in the Linux SCSI subsystem that may be biting
you -- it only addresses up to 16 devices. That's all, folks! Obviously
this is something that has to be changed before Linux can be taken
seriously in the high-end storage department. However, a RAID box
*SHOULD* present its dozens of devices as a single device to the Linux
kernel... so I don't know why this would be happening.
Finally, which driver were you using again?
--
Eric Lee Green eric@estinc.com
Software Engineer Visit our Web page:
Enhanced Software Technologies, Inc. http://www.estinc.com/
(602) 470-1115 voice (602) 470-1116 fax
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