Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750753AbVKSTPA (ORCPT ); Sat, 19 Nov 2005 14:15:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750755AbVKSTPA (ORCPT ); Sat, 19 Nov 2005 14:15:00 -0500 Received: from 8.ctyme.com ([69.50.231.8]:55244 "EHLO darwin.ctyme.com") by vger.kernel.org with ESMTP id S1750753AbVKSTO7 (ORCPT ); Sat, 19 Nov 2005 14:14:59 -0500 Message-ID: <437F79B1.9050703@perkel.com> Date: Sat, 19 Nov 2005 11:14:57 -0800 From: Marc Perkel User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Alistair John Strachan CC: Alan Cox , linux-kernel@vger.kernel.org Subject: Re: Does Linux support powering down SATA drives? References: <437F63C1.6010507@perkel.com> <1132426887.19692.11.camel@localhost.localdomain> <200511191900.12165.s0348365@sms.ed.ac.uk> In-Reply-To: <200511191900.12165.s0348365@sms.ed.ac.uk> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spamfilter-host: darwin.ctyme.com - http://www.junkemailfilter.com" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1329 Lines: 47 Alistair John Strachan wrote: >On Saturday 19 November 2005 19:01, Alan Cox wrote: > > >>On Sad, 2005-11-19 at 09:41 -0800, Marc Perkel wrote: >> >> >>>Trying to save power consumption. I have a backup drive that is used >>>only once a day to back up the main drive. So - why should I run it more >>>that 10 minutes a day? What I'd like to do is keep it in an off state >>>and then at night power it on, mount it up, do the backup, unmount it, >>>and shut it down. Can I do that? >>> >>> >>SATA not yet, USB you could however. >> >> > >Or PATA, of course. I switch off two of my HDs 4 minutes after last use with >the commands: > >hdparm -S 48 /dev/hde >hdparm -S 48 /dev/hdg > >Isn't there a passthru patch in the works to let commands, such as the one >required for suspend, through to a SATA device? > > > So - why isn't there more SATA support. Seems like this and SMART aren't supported. What's up with that? Why is SATA harder than IDE? -- Marc Perkel - marc@perkel.com Spam Filter: http://www.junkemailfilter.com My Blog: http://marc.perkel.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/