From owner-freebsd-scsi@FreeBSD.ORG Mon Feb 27 20:43:35 2006 Return-Path: X-Original-To: freebsd-scsi@freebsd.org Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C19CE16A420; Mon, 27 Feb 2006 20:43:35 +0000 (GMT) (envelope-from ticso@cicely12.cicely.de) Received: from ant.bwct.de (ant.bwct.de [85.159.14.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id EA1C243D46; Mon, 27 Feb 2006 20:43:34 +0000 (GMT) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de ([10.1.1.7]) by ant.bwct.de (8.12.11/8.12.11) with ESMTP id k1RKhWUd015545; Mon, 27 Feb 2006 21:43:33 +0100 (CET) Received: from cicely12.cicely.de (cicely12.cicely.de [10.1.1.14]) by cicely5.cicely.de (8.13.4/8.13.4) with ESMTP id k1RKhSmI036452 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 27 Feb 2006 21:43:28 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.13.4/8.13.3) with ESMTP id k1RKhRae068265; Mon, 27 Feb 2006 21:43:27 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.13.4/8.13.3/Submit) id k1RKhRs5068264; Mon, 27 Feb 2006 21:43:27 +0100 (CET) (envelope-from ticso) Date: Mon, 27 Feb 2006 21:43:27 +0100 From: Bernd Walter To: "Kenneth D. Merry" Message-ID: <20060227204326.GS64548@cicely12.cicely.de> References: <20060227201644.GR64548@cicely12.cicely.de> <20060227202254.GA1016@nargothrond.kdm.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060227202254.GA1016@nargothrond.kdm.org> X-Operating-System: FreeBSD cicely12.cicely.de 5.4-STABLE alpha User-Agent: Mutt/1.5.9i X-Spam-Status: No, score=-5.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.0.4 X-Spam-Report: * -3.3 ALL_TRUSTED Did not pass through any untrusted hosts * -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on cicely12.cicely.de Cc: Bernd Walter , freebsd-scsi@freebsd.org, ticso@cicely.de Subject: Re: Automatic unit start broken? X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ticso@cicely.de List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Feb 2006 20:43:36 -0000 On Mon, Feb 27, 2006 at 01:22:54PM -0700, Kenneth D. Merry wrote: > On Mon, Feb 27, 2006 at 21:16:45 +0100, Bernd Walter wrote: > > It seems that FreeBSD doesn't start disks anymore. > > That's strange, I don't think anything has changed in that area recently. I don't think this happened recently. It is a new machine, but I already noticed several months back that I can't camcontrol stop a mounted drives anymore without getting problems on access later. > > Disks which delayed start won't get probed by GEOM when they are not > > ready when GEOM tries - at least one can delay booting in this case. > > Disks which don't startup unless told never get working - I currently > > start them manually in rc-scripts and tell GEOM to reprobe, but this > > is not always an option, e.g. in case of / drive. > > All in all this is very annoying since I have not much options about > > changing the disk spin-up policy. > > What error code do your disks return? You will probably see some console > output if GEOM has tried to read metadata off the disk and that initial > read fails. > > If the drive returns 0x04,0x02 ("Logical unit not ready, initializing cmd. > required"), CAM will attempt to spin the disk up automatically and retry > the command. During the first tests I waited 90s in loader to let all delayed spin up drives spin up. This is with recent RELENG_6 and a drive which don't spin up themself: [...] da7 at esp1 bus 0 target 10 lun 0 da7: Fixed Direct Access SCSI-3 device da7: 20.000MB/s transfers (10.000MHz, offset 15, 16bit), Tagged Queueing Enabled da7: Attempt to query device size failed: NOT READY, Logical unit not ready, initial [...] No GEOM message about this driver until rc sends a start command and GEOM is retriggered to reread the drive: Unit started successfully GEOM_LABEL: Label for provider da7 is ufs/dump1. The following commands were used in rc: camcontrol start -n da -u 7 cat /dev/null > /dev/da7 Without the loader delay other disks are having problems as well: da9 at esp1 bus 0 target 14 lun 0 da9: Fixed Direct Access SCSI-3 device da9: 20.000MB/s transfers (10.000MHz, offset 15, 16bit), Tagged Queueing Enabled da9: Attempt to query device size failed: NOT READY, Logical unit is in process of b On Shell: [30]cicely19# dd if=/dev/da7 bs=1k count=1 of=/dev/null 1+0 records in 1+0 records out 1024 bytes transferred in 0.008765 secs (116829 bytes/sec) [31]cicely19# camcontrol stop -n da -u 7 Unit stopped successfully [32]cicely19# dd if=/dev/da7 bs=1k count=1 of=/dev/null dd: /dev/da7: Input/output error 0+0 records in 0+0 records out 0 bytes transferred in 0.004810 secs (0 bytes/sec) Exit 1 -- B.Walter BWCT http://www.bwct.de bernd@bwct.de info@bwct.de