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Path: utzoo!watmath!watcgl!dmmartindale
From: dmmartindale@watcgl.UUCP (Dave Martindale)
Newsgroups: net.unix-wizards
Subject: Re: 4.2 died on our VAX.
Message-ID: <2281@watcgl.UUCP>
Date: Mon, 19-Mar-84 16:53:30 EST
Article-I.D.: watcgl.2281
Posted: Mon Mar 19 16:53:30 1984
Date-Received: Tue, 20-Mar-84 00:55:49 EST
References: <301@erix.UUCP>
Organization: U of Waterloo, Ontario
Lines: 5

If you system just hung, it was probably waiting for the disk controller
to interrupt it indicating that the last-issued transfer or seek was
complete.  The HP disk drivers do no timeouts to detect lost controllers.
A drive that goes dead should cause an interrupt, so it's only in the
case of a dead controller that you should see this sort of hang.