Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756720AbYAFUZ1 (ORCPT ); Sun, 6 Jan 2008 15:25:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753877AbYAFUZP (ORCPT ); Sun, 6 Jan 2008 15:25:15 -0500 Received: from ishtar.tlinx.org ([64.81.245.74]:33484 "EHLO ishtar.tlinx.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753088AbYAFUZN (ORCPT ); Sun, 6 Jan 2008 15:25:13 -0500 Message-ID: <47813926.6010908@tlinx.org> Date: Sun, 06 Jan 2008 12:25:10 -0800 From: Linda Walsh User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) MIME-Version: 1.0 To: Robert Hancock CC: LKML , linux-ide@vger.kernel.org Subject: Re: SATA kernel-buffered read VERY slow (not raid, Promise TX300 card); 2.6.23.1(vanilla) References: <477D9B6E.7060000@shaw.ca> <477D9D66.3080502@tlinx.org> <477DA05F.4080503@shaw.ca> In-Reply-To: <477DA05F.4080503@shaw.ca> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 921 Lines: 24 Robert Hancock wrote: > > If this is a Seagate, I believe that they don't have AAM enabled on > any of their newer drives (something about a lawsuit for patent > infringement on that feature, or something). Quite likely they don't > support that power management command, either. -- Do you have a source for this -- haven't heard of such a conflict -- besides, doesn't ATA-7 require some of those functions? Given the trend toward power-saving and quieter (also usually less vibration) hard disks, I strongly disbelieve Seagate would remove those features -- especially since they are mentioned on Seagate's drive information page as being supported features. -- 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/