Date: Sat, 11 Apr 2009 13:30:07 GMT From: Bruce Cran <bruce@cran.org.uk> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/133593: [ata] `atacontrol spindown` won't affect disk until some data is read from it Message-ID: <200904111330.n3BDU7qg091404@freefall.freebsd.org>
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The following reply was made to PR kern/133593; it has been noted by GNATS. From: Bruce Cran <bruce@cran.org.uk> To: Dmitry Marakasov <amdmi3@amdmi3.ru> Cc: bug-followup@FreeBSD.org Subject: Re: kern/133593: [ata] `atacontrol spindown` won't affect disk until some data is read from it Date: Sat, 11 Apr 2009 14:20:19 +0100 On Sat, 11 Apr 2009 16:36:31 +0400 Dmitry Marakasov <amdmi3@amdmi3.ru> wrote: > Then maybe it's possible to make atacontrol make some dummy > request after the timeout is set? The drive has an onboard timer that can be programmed so the drive spins down after a predetermined length of time it's been unused. I'm not sure why the kernel's keeping track of this too and sending an immediate spindown command instead of telling it how long it should wait until spinning down. -- Bruce Cran
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