From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262632AbVGHGZY (ORCPT ); Fri, 8 Jul 2005 02:25:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262633AbVGHGZY (ORCPT ); Fri, 8 Jul 2005 02:25:24 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:61143 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S262632AbVGHGZW (ORCPT ); Fri, 8 Jul 2005 02:25:22 -0400 Date: Fri, 8 Jul 2005 08:26:35 +0200 From: Jens Axboe To: 7eggert@gmx.de Cc: Clemens Koller , Lenz Grimmer , Arjan van de Ven , Alejandro Bonilla , Jesper Juhl , Dave Hansen , hdaps-devel@lists.sourceforge.net, LKML List Subject: Re: IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer)) Message-ID: <20050708062630.GN24401@suse.de> References: <4msWl-Yq-5@gated-at.bofh.it> <4mtza-1vg-15@gated-at.bofh.it> <4mtII-1Ab-13@gated-at.bofh.it> <4mtSm-1FA-5@gated-at.bofh.it> <4mtSn-1FA-11@gated-at.bofh.it> <4mwx1-3N9-25@gated-at.bofh.it> <4mx9A-4qm-1@gated-at.bofh.it> <4nzCr-6fN-19@gated-at.bofh.it> <4nI36-527-9@gated-at.bofh.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 08 2005, Bodo Eggert wrote: > Clemens Koller wrote: > > > Well, sure, it's not a notebook HDD, but maybe it's possible > > to give headpark a more generic way to get the heads parked? > > I remember my old MFM HDD, which had a Landing Zone stored in the BIOS to > which the park command would seek. Maybe you could do something similar > and park the head on the last cylinder if the other options fail. Yeah, in ancient times you would simply issue a SEEK to the landing zone and the drive would park. Those days are long gone. The SEEK is just a hint anyways, with the sophisticated caching that drives do today I wouldn't rely on it doing anything reliable. -- Jens Axboe