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From: bcw@rti.UUCP (Bruce Wright)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Hard Drive Lifespans
Message-ID: <1766@rti.UUCP>
Date: Mon, 5-Oct-87 00:32:47 EDT
Article-I.D.: rti.1766
Posted: Mon Oct  5 00:32:47 1987
Date-Received: Thu, 8-Oct-87 01:01:50 EDT
References: <1623@ukecc.engr.uky.edu>
Organization: Research Triangle Institute, RTP, NC
Lines: 18
Keywords: Bearings divot life wearout
Summary: Approved disk drive positions

In article <1623@ukecc.engr.uky.edu>, dsrich@engr.uky.edu (Dave Richardson) writes:
> 
> Does the position of the drive (i.e. whether the PC is horizontal as on a
> desktop, or vertical as in a stand on the floor) effect the lifespan of the
> drive?

An EE friend (and business associate) of mine was concerned about this when
he was putting together an industrialized PC-compatible.  He found, somewhat
to his surprise, that just about all of the possible positions in which the
drive was at various 90-degree rotations were approved EXCEPT those with the
face plate facing directly UP and DOWN.  He never found out if this was just
because it hadn't been tested or if there was a real problem.

This was for a Seagate 225, there is a possibility that other drives would
have somewhat different characteristics.  Also, it's possible that some
positions would have some minor effect on drive life and still be approved.

					Bruce C. Wright