Date: Sat, 18 Jun 2005 19:12:07 +0200 From: Michael Weiser <michael@weiser.dinsnail.net> To: "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: freebsd-current@freebsd.org Subject: Re: ata explicit idle/standby Message-ID: <20050618171207.GB993@weiser.dinsnail.net> In-Reply-To: <200506190222.42111.doconnor@gsoft.com.au> References: <20050618161744.GA993@weiser.dinsnail.net> <200506190222.42111.doconnor@gsoft.com.au>
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On Sun, Jun 19, 2005 at 02:22:41AM +0930, Daniel O'Connor wrote: > > I've done a small patch to the -CURRENT atacontrol and ata driver to > > allow explicit switch of drives to idle or standby mode and query the > > current mode. I use it to spin down disks needed only very inregularly. > > If extended by a means to set the idle timeout this might be > > particularly useful to notebook users as well. > Yes.. > Combine with > http://lists.freebsd.org/pipermail/freebsd-mobile/2003-May/000681.html to > allow you to turn the drive off for a reasonable amount of time :) > (That diff doesn't apply directly but it's trivial to apply by hand) In my case I dismount the disks anyway, so I don't need to hold off cache flushes and the like. > > Or have I actually missed the some already present functionality to > > achieve the same? > There is a port (ataidle) which does this but I think having it in atacontrol > is a good idea. I went to patching because ataidle is broken on 6.0-CURRENT. -- bye, Micha
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