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From: kraus@motcid (David Kraus)
Newsgroups: comp.os.msdos.misc
Subject: Re: Seagate 4051 Questions
Message-ID: <6110@orchid5.UUCP>
Date: 10 Jan 91 23:08:19 GMT
References: <15330001@hpavla.avo.hp.com>
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Organization: Motorola Inc. Cellular Infrastructure Div., Arlington Heights, IL
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In-reply-to: dougm@palomar.SanDiego.NCR.COM's message of 5 Jan 91 21:54:11 GMT

Distribution: 

In article <1991Jan5.215411.14174@SanDiego.NCR.COM>, dougm@palomar.SanDiego.NCR.COM (Doug Marshall) writes:

> In article <15330001@hpavla.avo.hp.com> pfeifer@hpavla.avo.hp.com (Mark Pfeifer) writes:

>>While I'm at it, one more question.  I have a Seagate ST-225 drive that is
>>also installed in the system (now as the second hard disk, D:).  I have a 
>>tower case, and had the 225 directly above the 4051 - and started getting
>>read errors on the 225.  I moved the 225 three slots higher, and have not
>>experienced the problem again.  Is it possible for adjacent hard disks to
>>interfere with each other (magneticly)?  

> I had the exact same problem with two ST238s.  With one mounted directly above
> the other, it would have all kinds of problems.  Then again, it may be that
> there is no metal plate separating the two drives - there are just holes for
> mounting the drives on the sides of the supports.  I was successful in
> mounting them side by side.  My guess is that there is probably some sort of
> magnetic inteference(?).

I had two ST238s running one above the other for about 2 years.  I
initially experienced the same thing - D drive (the upper of the 2) would
get REAL flakey after being run a little while.  Hung a muffin fan in front
of the 2 drives (blowing through the faceplates no less) and had no
problems afterward.  So, it looks to be a heat problem with the ST225/ST238
design.

Now I'm running them to a separate case with their own power supply and
6-foot long controller cables....
--
Dave Kraus                                         UUCP: ...!uunet!motcid!kraus
Motorola Cellular Infrastructure Division          FidoNet: 1:115/934.5
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