Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756832AbXHRQIb (ORCPT ); Sat, 18 Aug 2007 12:08:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755610AbXHRQIW (ORCPT ); Sat, 18 Aug 2007 12:08:22 -0400 Received: from ms-smtp-03.nyroc.rr.com ([24.24.2.57]:51511 "EHLO ms-smtp-03.nyroc.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755311AbXHRQIW (ORCPT ); Sat, 18 Aug 2007 12:08:22 -0400 Message-Id: <200708181608.l7IG8Jmm006141@dell2.home> X-Mailer: exmh version 2.4 05/15/2001 with nmh-1.1 To: linux-kernel@vger.kernel.org Subject: power off disk drives while running Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 18 Aug 2007 12:08:19 -0400 From: "Marty Leisner" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 617 Lines: 17 In embedded system design, it may be useful to poweroff the disks (as opposed to merely spinning them down). We want to leave the system running while the disk is powered down, and let the disk powerup when it needs to be spun up. While the "power off mechanism" would be platform dependent, is there a generic path to announce "prepare for power going away"? marty - 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/