From: Malli, Brandon (brandon.malli@nagrastar.com)
Date: Fri Feb 06 2004 - 12:50:54 EST
Hopefully last try!
Apparently the HSG80 is Parallel SCSI on the backend - just like the
HSZ80 - but on the front-end it is Fibre. However since SCSI-3 has
expanded the medium choices - the SCSI protocol can be carried over the
Fibre Channel front-end (which is the case with the HSG80).
For the KZPCC it seems that the command protocol is not even SCSI -
hence no scu commands - but something specific to that particular family
of backplane controller (most probably a descendant of the old Mylex
controllers).
Thanks Alan for helping to set me straight.
-----Original Message-----
From: Malli, Brandon
Sent: Friday, February 06, 2004 10:26 AM
To: Malli, Brandon; Tru64-UNIX-Managers@ornl.gov
Subject: SUMMARY 2: scu show edt not showing devices on kzpcc-ac
Thanks again to Alan and Dr. Blinn.
Basically the reason the HSZ80 and HSG80 work is that the HSZ80 is SCSI
on both sides (host side interface and backend) and with the HSG80 there
was a concentrated effort to make its front side be fully SCSI
compliant.
The KZPCC on the other hand is considered a "legacy" device and not
worth the attention to make it SCSI compliant on the host side.
I'll quit whining now!
-----Original Message-----
From: Malli, Brandon
Sent: Friday, February 06, 2004 9:58 AM
To: Tru64-UNIX-Managers@ornl.gov
Subject: SUMMARY: scu show edt not showing devices on kzpcc-ac
Thanks to Alan, Dr. Blinn, Michael, Raul, and Bryan.
Basically the consensus is that the KZPCC RAID controller - while a SCSI
device - is not considered a SCSI device by the OS. Therefore, scu
cannot be used to manipulate the devices attached to it.
Following that line of thought it seems that the only viable solution
for controlling the KZPCC is to use SWCC which unfortunately requires a
Windows box - there is an agent that runs on the tru64 host but the
actual controller software runs on Windows.
On a side note I can see the devices connected to an HSZ80 and also the
devices connected to the HSG80 - which also are RAID controllers but
somehow still present the logical drives as SCSI to the system. Seems
to me that this function could be built into the KZPCC as well...
Thanks for all the replies!
-----Original Message-----
From: Malli, Brandon
Sent: Thursday, February 05, 2004 4:18 PM
To: 'Tru64-UNIX-Managers@ornl.gov'
Subject: scu show edt not showing devices on kzpcc-ac
All,
I'm trying to gain access to a hot swappable drive on my ES40. Basically
I added the drive to the internal 6 slot hot swappable bay (which is
connected to a kzpcc-ac RAID controller) and upon issuing "scu scan edt"
then "scu show edt" I realized that I couldn't see the kzpcc-ac
controller at all - nor my new drive for that matter. I've never run
this command before on this particular system so I don't know if I could
ever see the kzpcc-ac. Also I'm booted of this device so I know the OS
at least recognizes it.
I'm running 4.0g and out of ideas. Any help would be greatly
appreciated.
-------------------------------------------------------------
Brandon Malli
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