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From: folta@tove.cs.umd.edu (Wayne Folta)
Newsgroups: comp.sys.mac.hardware
Subject: IIci and strange disk activity ?
Message-ID: <25989@mimsy.umd.edu>
Date: 11 Aug 90 13:31:42 GMT
Sender: news@mimsy.umd.edu
Reply-To: folta@tove.cs.umd.edu (Wayne Folta)
Distribution: usa
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 17

We got a IIci last November (the third one on campus) and it has served us
well, but...

A couple of months ago, it started stuttering.  That is, the disk would chatter
as if seeking around rapidly, but the access light would not come on.  At
first, it seemed to happen randomly, so I worried that we had one of the
Stiction Quantums.  But now it seems to happen 90% of the time when I am
running one particular program.

Could it be that there is a bad spot on the disk, or a cylinder where it
has trouble seeking?  I have de-fragmented the disk since the early days
and maybe this program has ended up on the bad spot now?  How could I tell?

--


Wayne Folta          (folta@cs.umd.edu  128.8.128.8)