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                         [EMAIL PROTECTED]
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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