From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tino Keitel Subject: Intel X25-M and device-initiated interface power management Date: Tue, 16 Mar 2010 23:05:22 +0100 Message-ID: <20100316220522.GA14120@x61.home> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from eazy.amigager.de ([213.239.192.238]:40501 "EHLO eazy.amigager.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750820Ab0CPWOL (ORCPT ); Tue, 16 Mar 2010 18:14:11 -0400 Received: from x61.home (port-92-206-33-132.dynamic.qsc.de [92.206.33.132]) by eazy.amigager.de (Postfix) with ESMTPA id 49D1CFA8008 for ; Tue, 16 Mar 2010 23:05:29 +0100 (CET) Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Hi, I read that the Intel X25-M SSD consumes less than 0,3W during typical usage if DIPM is enabled. This would give noticable power saving even compared to a spinned down hard disk. I checked the hdparm -I output on my notebook with the current hard disk, and it shows this: * Device-initiated interface power management When searching for the corresponding hdparm output with X25-M in google, I found only hdparm output with this feature unset. What can I expect with a X25-M on my hardware regarding DIPM? It is a ThinkPad X61s, lspci shows this: 00:1f.2 SATA controller [0106]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller [8086:2829] (rev 03) Please CC: me in replies, as I'm not subscribed. Regards, Tino