From owner-freebsd-hackers@FreeBSD.ORG Fri Aug 26 14:36:17 2005 Return-Path: X-Original-To: freebsd-hackers@FreeBSD.ORG Delivered-To: freebsd-hackers@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A9A7016A41F for ; Fri, 26 Aug 2005 14:36:17 +0000 (GMT) (envelope-from mdodd@FreeBSD.ORG) Received: from sasami.jurai.net (sasami.jurai.net [70.88.158.93]) by mx1.FreeBSD.org (Postfix) with ESMTP id 334F443D46 for ; Fri, 26 Aug 2005 14:36:15 +0000 (GMT) (envelope-from mdodd@FreeBSD.ORG) Received: from sasami.jurai.net (winter@sasami.jurai.net [70.88.158.93]) by sasami.jurai.net (8.13.1/8.13.1) with ESMTP id j7QEaC7P052834; Fri, 26 Aug 2005 10:36:14 -0400 (EDT) (envelope-from mdodd@FreeBSD.ORG) Date: Fri, 26 Aug 2005 10:36:11 -0400 (EDT) From: "Matthew N. Dodd" X-X-Sender: winter@sasami.jurai.net To: m.ehinger@ltur.de In-Reply-To: Message-ID: <20050826103208.O1915@sasami.jurai.net> References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-1.5.6 (sasami.jurai.net [70.88.158.93]); Fri, 26 Aug 2005 10:36:14 -0400 (EDT) Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Parking disk drive heads X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Aug 2005 14:36:17 -0000 On Fri, 26 Aug 2005 m.ehinger@ltur.de wrote: > Is there a way to lock the drive in that state for some seconds? Not currently. It looks like the ATA driver will need to be extended to allow devices to be "frozen" and to expose a mechanism for submitting immediate commands, similar to how ATA_STALL_QUEUE works. -- 10 40 80 C0 00 FF FF FF FF C0 00 00 00 00 10 AA AA 03 00 00 00 08 00