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Date:      Tue, 02 Apr 1996 06:32:40 +0000
From:      Poul-Henning Kamp <phk@critter.tfs.com>
To:        "JULIAN Elischer" <julian@ref.tfs.com>
Cc:        Brett_Glass@ccgate.infoworld.com (Brett Glass), freebsd-hardware@FreeBSD.org, hackers@FreeBSD.org, bugs@FreeBSD.org
Subject:   Re: Changes to FreeBSD kernel to keep "green" drives on 
Message-ID:  <1574.828426760@critter.tfs.com>
In-Reply-To: Your message of "Mon, 01 Apr 1996 10:21:49 PST." <199604011821.KAA04704@ref.tfs.com> 

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> I know phk has been looking at spin-up optimisatiosn..
> (e.g. if a drive takes more than a set time to  come ready, assumen it was
> spinning up and schedule a 'sync'  to catch it while it's already going..

Actually The thing I did was an utterly disgusting hack "sleep-hack" that
assumes that if the disk went to sleep, it will wake up with a different
geometry.  (workaround for a BIOS-bug).


--
Poul-Henning Kamp           | phk@FreeBSD.ORG       FreeBSD Core-team.
http://www.freebsd.org/~phk | phk@login.dknet.dk    Private mailbox.
whois: [PHK]                | phk@ref.tfs.com       TRW Financial Systems, Inc.
Future will arrive by its own means, progress not so.



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