From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id n13FnnPM072507 for ; Tue, 3 Feb 2009 09:49:49 -0600 Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 4BD7EDF7C7 for ; Tue, 3 Feb 2009 07:49:09 -0800 (PST) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id cjCX0WpjDQGV867J for ; Tue, 03 Feb 2009 07:49:09 -0800 (PST) Date: Tue, 3 Feb 2009 10:49:08 -0500 From: Christoph Hellwig Subject: Re: xfs_force_shutdown after Raid crash Message-ID: <20090203154907.GA21278@infradead.org> References: <498376CF.8020806@renderforce.de> <200902031022.38583@zmi.at> <20090203093239.GA14963@infradead.org> <200902031140.08576@zmi.at> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <200902031140.08576@zmi.at> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Michael Monnerie Cc: xfs@oss.sgi.com On Tue, Feb 03, 2009 at 11:40:08AM +0100, Michael Monnerie wrote: > On Dienstag 03 Februar 2009 Christoph Hellwig wrote: > > Yes. ?I would hope raid controllers disable the write cache on disks, > > but for lower end controllers I'm not sure they really do it. > > On Areca Controllers, I can select if I want it on or off. Could an > information about the disk cache be written to the FAQ? Would for sure > save some people's data... :-) > > So battery backed controller cache on, disk cache off, barriers off. > Quite simple once you know it :-)) Yeah, that sounds correct. Do you volunteer for the FAQ entry? xfs.org is a wiki so you could add it. I'm happy to proof-read it if you want. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs