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From: jms@doctor.Tymnet.COM (Joe Smith)
Newsgroups: comp.sys.amiga,comp.sys.amiga.tech
Subject: Re: ST277N-1 noises
Message-ID: <719@doctor.Tymnet.COM>
Date: 26 Oct 89 07:35:54 GMT
References: <749@dsacg2.UUCP>
Reply-To: jms@doctor.Tymnet.COM (Joe Smith)
Organization: McDonnell Douglas Field Service Co, San Jose CA
Lines: 17

In article <749@dsacg2.UUCP> nor1675@dsacg2.UUCP (Michael Figg) writes:
>     drive was replaced with a newer ST277N-1 (I think it was '-1' but maybe
>     '-2', anyway it's 28ms). As soon as the new drive was installed it       
>     started to make occasionally sporatic access sounds, usually when the
>     machine is on, but not being used. The sounds don't sound 'bad' and only
>     happen approxiametly every 5 or 6 minutes for about 1 second.

It's probably designed to do that.  I have an ST157N and its embedded SCSI
controller seems to do its own auto-parking.  Or you could call it
"auto-lets-move-the-heads-and-spread-the-lubricant-around".  The muscles in
the disk get cramps from staying in one place for so long, so it has to get
up an stretch a bit.  :-)
-- 
Joe Smith (408)922-6220 | SMTP: JMS@F74.TYMNET.COM or jms@gemini.tymnet.com
McDonnell Douglas FSCO  | UUCP: ...!{ames,pyramid}!oliveb!tymix!tardis!jms
PO Box 49019, MS-D21    | PDP-10 support: My car's license plate is "POPJ P,"
San Jose, CA 95161-9019 | narrator.device: "I didn't say that, my Amiga did!"