From owner-freebsd-stable@FreeBSD.ORG Wed Nov 19 19:48:57 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 61A611065675 for ; Wed, 19 Nov 2008 19:48:57 +0000 (UTC) (envelope-from erikt@midgard.homeip.net) Received: from ch-smtp02.sth.basefarm.net (ch-smtp02.sth.basefarm.net [80.76.149.213]) by mx1.freebsd.org (Postfix) with ESMTP id E7D878FC1F for ; Wed, 19 Nov 2008 19:48:56 +0000 (UTC) (envelope-from erikt@midgard.homeip.net) Received: from c83-255-48-78.bredband.comhem.se ([83.255.48.78]:58704 helo=falcon.midgard.homeip.net) by ch-smtp02.sth.basefarm.net with esmtp (Exim 4.68) (envelope-from ) id 1L2t2l-0004vN-8j for freebsd-stable@freebsd.org; Wed, 19 Nov 2008 20:48:56 +0100 Received: (qmail 58410 invoked from network); 19 Nov 2008 20:48:51 +0100 Received: from owl.midgard.homeip.net (10.1.5.7) by falcon.midgard.homeip.net with ESMTP; 19 Nov 2008 20:48:51 +0100 Received: (qmail 20915 invoked by uid 1001); 19 Nov 2008 20:48:51 +0100 Date: Wed, 19 Nov 2008 20:48:51 +0100 From: Erik Trulsson To: Jeremy Chadwick Message-ID: <20081119194851.GA20898@owl.midgard.homeip.net> References: <610465.33671.qm@web36108.mail.mud.yahoo.com> <20081119191042.GA5284@icarus.home.lan> <957588.98964.qm@web36103.mail.mud.yahoo.com> <20081119193242.GA5739@icarus.home.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081119193242.GA5739@icarus.home.lan> User-Agent: Mutt/1.5.18 (2008-05-17) X-Originating-IP: 83.255.48.78 X-Scan-Result: No virus found in message 1L2t2l-0004vN-8j. X-Scan-Signature: ch-smtp02.sth.basefarm.net 1L2t2l-0004vN-8j ef1204270af6643ce49386de248bb9c2 Cc: freebsd-stable@freebsd.org, Mark Sams Subject: Re: atacontrol missing drive after upgrade to 6.3 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Nov 2008 19:48:57 -0000 On Wed, Nov 19, 2008 at 11:32:42AM -0800, Jeremy Chadwick wrote: > On Wed, Nov 19, 2008 at 11:29:19AM -0800, Mark Sams wrote: > > > From: Jeremy Chadwick > > > You're using Intel MatrixRAID, aren't you? Please migrate away from > > > this immediately, your data is at risk. > > > > Ummm... I don't think so. It is just a standard RAID 1 mirror using the > > built in ICH5 chip. It has been running fine for a over a year now on > > the other builds of FreeBSD 6.x. It is not RAID 0+1 or whatever the > > Matrix RAID thing is. > > The built-in ICH5 == Intel MatrixRAID. It's BIOS-level RAID under an > Intel ICH chip. It's called MatrixRAID. No, it is not. MatrixRAID was not introduced until with the ICH6R controller. Earlier Intel ICH chips (including the ICH5) may well have supported some kind of BIOS-level RAID, but it was not MatrixRAID. (This is not to say that their earlier RAID implementations was any more or less reliable - I have no data on that.) > > I have no personal problem with Intel MatrixRAID. What I'm telling you > is that FreeBSD's support for it is horribly, horribly broken. You > *will* lose your data. Read my Wiki entries in full. > > I'm only going to say this once more: please reconsider. You very > likely are not going to be able to recover that failed array. The last > person who had this problem had to boot a Linux LiveCD and attempt to > use Linux tools to repair it. -- Erik Trulsson ertr1013@student.uu.se