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From: donn@radar.UUCP (Donn S. Fishbein)
Newsgroups: comp.sys.mac
Subject: Re: should hard drives be left running 24 hrs/day?
Message-ID: <262@radar.UUCP>
Date: 16 Apr 89 23:22:40 GMT
References: <1279@osupyr.mast.ohio-state.edu> <3950@newton.praxis.co.uk>
Reply-To: donn@radar.UUCP (Donn S. Fishbein)
Organization: CDS Consulting/MacInterested
Lines: 16

In article <3950@newton.praxis.co.uk> jez@praxis.co.uk (Jeremy Prior) writes:
In article <1279@osupyr.mast.ohio-state.edu> pgn@osupyr.mast.ohio-state.edu
(Paul G. Nevai) writes:
>
>Should an extrenal Mac hard drive be left on 24 hours a day or
>should it be turned on in the morning and turned off in the
>evening?

I'm just wondering if anyone actually knows for sure what the MTBF
ratings actually mean. Does this refer to the time the drive is on
(motor turning), or the time the drive is in use. It seems the MTBF
would have to be qualified by the percent activity the drive saw.
Anyone know for sure.
-- 
Donn S. Fishbein, MD, PhD               CDS Consulting
3473 Golf Club Lane, Nashville, TN 37215  615-385-4755