From mboxrd@z Thu Jan 1 00:00:00 1970 From: Douglas Gilbert Subject: Re: SATL support for hdparm? Date: Sun, 15 Feb 2009 01:14:47 +0100 Message-ID: <49975E77.5020704@interlog.com> References: <20090214222114.GI17914@xi.wantstofly.org> Reply-To: dgilbert@interlog.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp.infotech.no ([82.134.31.41]:39023 "EHLO elrond2.infotech.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752220AbZBOAWo (ORCPT ); Sat, 14 Feb 2009 19:22:44 -0500 In-Reply-To: <20090214222114.GI17914@xi.wantstofly.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Lennert Buytenhek Cc: linux-ide@vger.kernel.org, mlord@pobox.com Lennert Buytenhek wrote: > [ please CC, not on the list ] > > Hi, > > I have a bunch of SATA disks hanging off a SAS expander on which I > would like to disable APM (using hdparm -B). This doesn't work as-is, > and from reading: > > http://smartmontools.sourceforge.net/smartmontools_scsi.html > > it appears that I'd need to hack hdparm to use the ATA PASS THROUGH > SCSI command to make it talk to SATA disks behind a SAS expander, as > was already done for smartctl. Did anyone implement something like > this for hdparm yet by any chance? I need to update that document to state that later versions of hdparm do indeed use the SAT pass-through mechanism and hdparm should work in your situation. So follow Mark Lord's advice. Doug Gilbert