From owner-freebsd-geom@FreeBSD.ORG Thu Mar 10 18:20:22 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6E28F16A4CE; Thu, 10 Mar 2005 18:20:22 +0000 (GMT) Received: from gromit.dlib.vt.edu (gromit.dlib.vt.edu [128.173.49.29]) by mx1.FreeBSD.org (Postfix) with ESMTP id CA58043D49; Thu, 10 Mar 2005 18:20:21 +0000 (GMT) (envelope-from paul@gromit.dlib.vt.edu) Received: from zappa.Chelsea-Ct.Org (pool-151-199-89-235.roa.east.verizon.net [151.199.89.235]) by gromit.dlib.vt.edu (8.13.1/8.13.1) with ESMTP id j2AIKH2h078619 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 10 Mar 2005 13:20:18 -0500 (EST) (envelope-from paul@gromit.dlib.vt.edu) Received: from zappa.Chelsea-Ct.Org (localhost.Chelsea-Ct.Org [127.0.0.1]) by zappa.Chelsea-Ct.Org (8.13.3/8.13.3) with ESMTP id j2AIKBmd015928 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 10 Mar 2005 13:20:11 -0500 (EST) (envelope-from paul@gromit.dlib.vt.edu) Received: (from paul@localhost) by zappa.Chelsea-Ct.Org (8.13.3/8.13.3/Submit) id j2AIKAuI015927; Thu, 10 Mar 2005 13:20:10 -0500 (EST) (envelope-from paul@gromit.dlib.vt.edu) X-Authentication-Warning: zappa.Chelsea-Ct.Org: paul set sender to paul@gromit.dlib.vt.edu using -f From: Paul Mather To: Michael Riexinger In-Reply-To: <200503100931.55627.michael.riexinger@de.clara.net> References: <200503091503.33431.michael.riexinger@de.clara.net> <1110408229.690.8.camel@zappa.Chelsea-Ct.Org> <20050309232448.GA28861@alzatex.com> <200503100931.55627.michael.riexinger@de.clara.net> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Thu, 10 Mar 2005 13:20:10 -0500 Message-Id: <1110478810.15725.25.camel@zappa.Chelsea-Ct.Org> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 FreeBSD GNOME Team Port cc: "Loren M. Lang" cc: Pawel Jakub Dawidek cc: freebsd-geom@freebsd.org Subject: Re: gmirror metadata X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Mar 2005 18:20:22 -0000 On Thu, 2005-03-10 at 09:31 +0100, Michael Riexinger wrote: > The strange thing is: When I labeled the second drive with gmirror and > rebooted the machine, the raid bios said something like 'new disk > detected' and rebooted automatically, and then it put it's own metatata > on it... That's what I remember happening to me. After attaching the drives and starting up again, the RAID BIOS declared something about "new disk detected." Apparently, it also spammed over my geom_mirror metadata with its own. I guess, for some reason, it wanted to mark the drives as "unused/unallocated" in any of its RAIDs, rather than taking the more polite approach of denoting an *absence* of its chosen metadata to indicate that fact. (I wouldn't have minded so much if I'd explicitly marked the drives as "spares" or similar, but I didn't want the RAID to use them at all. Like I said, its behaviour was all very rude.:) The LSI MegaRAID IDE 100 card I was using does have an "EPROM enable/disable" jumper on it to disable the RAID BIOS and make the card revert (I guess) to a standard IDE controller. However, in that mode, I couldn't seem to boot from it. That might have more to do with the finicky Dell BIOS in my system, though... :-( Cheers, Paul. -- e-mail: paul@gromit.dlib.vt.edu "Without music to decorate it, time is just a bunch of boring production deadlines or dates by which bills must be paid." --- Frank Vincent Zappa