Thanks to the following people for their quick responses:
Dr. Tom Blinn (tpb_at_doctor.zk3.dec.com)
Robert A. Maiello (maiellor_at_toysrus.com)
John Clifton (John.Clifton_at_keltecprogress.co.uk)
Gene Leyzarovich (Gene_at_acnc.com)
My original question is listed below. Compaq made some changes in Tru64
5.0 to the routine that detects SCSI devices, and this has created a
problem recognizing certain devices. Following Dr. Tom Blinn's
recommendation, I ran scu and used the show edt command to see what
devices it lists on the SCSI bus. In version 4.0F, everything showed up
correctly (the RAID sets show the device type to be "Direct-Access").
The same process in version 5.0 lists each RAID set as "Processor". It
is apparently confusing the RAID controller bridge with the actual RAID
sets, which explains why it can't see the RAID sets as usable storage
devices.
I also tried installing version 4.0F on the RAID set and using the
installupdate command to upgrade to 5.0 As I suspected, this just
caused the system to halt after the upgrade when booting 5.0 when it
can't mount root.
We finally decided just to use version 4.0F instead of 5.0, and we'll
wait for the next upgrade release (5.0A?) and hope that solves the
problem.
Regards,
David
------------------------------------
ORIGINAL QUESTION:
I'm trying to attach an external RAID (using a Chaparral K5412 SCSI-SCSI
RAID controller and three RAID 1 sets using 36GB drives) to an
AlphaServer DS20 running Tru64 UNIX 5.0 and it doesn't see any of the
RAID devices. I would like to remove all drives inside the system and
boot from one of the mirrored RAID sets, but when I boot from the 5.0
installation CD, it claims that there are no drives in the system.
The devices are listed in the SRM console as DKA100 (first RAID set),
DKA101 (second RAID set), DKA102 (third RAID set), and JKA103 (the RAID
controller/bridge). I can run "exer dka100 dka101 dka102" and it
exercises the RAID set just fine. I know that Tru64 UNIX has a problem
installing on drives that use LUN numbers other than 0, but even version
4.0F allows us to install on the first RAID set (DKA100), then later
label and mount the other two RAID sets after it is installed.
The SCSI host controller in the DS20 is an IntraServer ITI-6100
(Ultra2/LVD), which is supported and works fine with other drives. I've
also tried attaching the RAID to the existing SCSI/Ethernet combo card
in the system, and had the same results. I would like to be able to use
this Ultra2/LVD RAID if possible, so any input would be appreciated.
--------------------
David Monroe
Puget Sound Data Systems, Inc.
mailto:david_at_psds.com
Voice: 425-488-0710
Fax: 425-488-6414
Internet:
http://www.psds.com
Received on Tue Dec 28 1999 - 16:35:26 NZDT