From owner-freebsd-hackers@FreeBSD.ORG Fri Mar 6 11:03:07 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C937D106566C for ; Fri, 6 Mar 2009 11:03:07 +0000 (UTC) (envelope-from ticso@cicely7.cicely.de) Received: from raven.bwct.de (raven.bwct.de [85.159.14.73]) by mx1.freebsd.org (Postfix) with ESMTP id 34DA98FC0A for ; Fri, 6 Mar 2009 11:03:06 +0000 (UTC) (envelope-from ticso@cicely7.cicely.de) Received: from cicely5.cicely.de ([10.1.1.7]) by raven.bwct.de (8.13.4/8.13.4) with ESMTP id n26B34N8023768 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 6 Mar 2009 12:03:04 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (cicely7.cicely.de [10.1.1.9]) by cicely5.cicely.de (8.14.2/8.14.2) with ESMTP id n26B30Fj009494 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 6 Mar 2009 12:03:00 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (localhost [127.0.0.1]) by cicely7.cicely.de (8.14.2/8.14.2) with ESMTP id n26B30Jh066775; Fri, 6 Mar 2009 12:03:00 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: (from ticso@localhost) by cicely7.cicely.de (8.14.2/8.14.2/Submit) id n26B30LO066774; Fri, 6 Mar 2009 12:03:00 +0100 (CET) (envelope-from ticso) Date: Fri, 6 Mar 2009 12:03:00 +0100 From: Bernd Walter To: Daniel Thiele Message-ID: <20090306110259.GG64172@cicely7.cicely.de> References: <200903050758.n257wod8088426@lurza.secnetix.de> <49B02211.1010809@abitos.org> <49B037F6.3080001@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49B037F6.3080001@gmx.net> X-Operating-System: FreeBSD cicely7.cicely.de 7.0-STABLE i386 User-Agent: Mutt/1.5.11 X-Spam-Status: No, score=-4.4 required=5.0 tests=ALL_TRUSTED=-1.8, AWL=0.045, BAYES_00=-2.599 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on spamd.cicely.de Cc: Nate Eldredge , Tobias Blersch , freebsd-hackers@freebsd.org Subject: Re: Spin down HDD after disk sync or before power off X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ticso@cicely.de List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Mar 2009 11:03:08 -0000 On Thu, Mar 05, 2009 at 09:37:10PM +0100, Daniel Thiele wrote: > > "Travelstar 5K320 Specification - HTSxxx models v1.0" avilable at > http://www.hitachigst.com/tech/techlib.nsf/products/Travelstar_5K320 > > says in the paragraph "Required power-off sequence": "The required host > system sequence for removing power from the drive is as follows [...]" > whereas the TravelStar 5K100 specifications lists exactly the same steps > but states that it is the BIOS' job to take care of executing them. > > | Perhaps the OP's BIOS for some reason doesn't do this correctly. The BIOS can only do this for known drives. There is always the chance that the kernel knows more drives than the BIOS, since usually people (including me) don't bother to tell the BIOS about more than the boot drive. Also FreeBSD had most recently used the ata controllers and it might be left in a mode, which can't be taken over by the BIOS. -- B.Walter http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.