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From: pnessutt@dmshq.mn.org (Robert A. Monio)
Newsgroups: comp.sys.mips
Subject: Re: Problems with external SCSI devices on RC3240
Message-ID: <8530@dmshq.mn.org>
Date: 5 Apr 91 05:47:59 GMT
References: <1991Apr4.220929.3759@bcl.co.nz>
Organization: Death Fleet Command
Lines: 33

In article <1991Apr4.220929.3759@bcl.co.nz> chris@bcl.co.nz (Chris Mackerell) writes:
>Has anyone experienced problems running multiple external SCSI
>peripherals off RC3240 or M120 machines?
>
>The symptoms vary with the number of devices attached, varying from
>failing the SCSI power on diags (with serveral devices attached), to
>the occasional recovered SCSI error (with one attached).
>
>Has anyone else experienced problems similar to this? Is there a cure?

Several local customers that I work with have a mixture of M-120s and
RC3240s.  All have expansion cabinets with several drives and one
even has an exabyte in it.  For a while we were experiencing some
problems with one of the RC3240s and we finally narrowed it down to a
faulty power supply in the expansion cabinet.  After replacing the
power supply, our SCSI problems went away.

The only other problems we've seen with the M-120s has been with the
348MB drives.  The MIPS-supplied units seem to have a mean failure
rate of 6 months per drive and the one customer who has had 2 of them
go bad has now gone directly to Seagate for the units.  I don't think
any of this is MIPS's problem though since even Seagate has mentioned
that there were manufacturing problems with those particular drives.

Good luck!

 -Bob

-- 
 Robert A. Monio                       "Politicians are the lowest form of 
 International Quality Institute, Inc.  life on the earth.  Liberal Democrats
 pnessutt@dmshq.mn.org                  are the lowest form of politician."
 ..uunet!rosevax!sialis!dmshq!pnessutt             -- George S. Patton, Jr.