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From: taw@spar.UUCP
Newsgroups: comp.unix.wizards
Subject: Re: BSD + CDC + Emulex
Message-ID: <1739@spar.SPAR.SLB.COM>
Date: Tue, 19-May-87 14:43:24 EDT
Article-I.D.: spar.1739
Posted: Tue May 19 14:43:24 1987
Date-Received: Thu, 21-May-87 01:33:42 EDT
References: <7424@brl-adm.ARPA>
Reply-To: taw@spar.UUCP (Tom Wadlow)
Organization: Schlumberger Palo Alto Research - CASLAB
Lines: 11
Keywords: CDC disk failure

We have had quite a few problems with our CDC9771 drives.  Typically,
the failure mode has been death due to HDA failure after 18.00 months
of operation.  Quite literally, they seemed to die in a predictable
sequence based on when they had first been turned on.  We had a 100%
mortality rate on all the 9771s from one batch.

We now have quite a few 9772s, bought before the 71s began to die.  These
drives seem to work acceptably, but we haven't had them as long enough
to be sure that they don't have the same problems.

--Tom