From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q1RIWwQC111737 for ; Mon, 27 Feb 2012 12:32:58 -0600 Received: from sam.nabble.com (sam.nabble.com [216.139.236.26]) by cuda.sgi.com with ESMTP id EqVIzls0MeXnoZc5 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 27 Feb 2012 10:32:56 -0800 (PST) Received: from isper.nabble.com ([192.168.236.156]) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1S25NX-0005My-Do for xfs@oss.sgi.com; Mon, 27 Feb 2012 10:32:55 -0800 Message-ID: <33401743.post@talk.nabble.com> Date: Mon, 27 Feb 2012 10:32:55 -0800 (PST) From: MikeJeezy Subject: Re: mount: Structure needs cleaning In-Reply-To: <4F4B2281.1070200@hardwarefreak.com> MIME-Version: 1.0 References: <33393100.post@talk.nabble.com> <4F49B693.4080309@hardwarefreak.com> <33393429.post@talk.nabble.com> <20120227004902.GQ3592@dastard> <33397518.post@talk.nabble.com> <4F4B2281.1070200@hardwarefreak.com> 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: xfs@oss.sgi.com > You want the individual drive write caches disabled. Leaving their read caches enabled is fine. > >The reason is that a power drop, kernel panic, or hardware lockup >(thermal etc) clears the drive write caches before the blocks are >written to the platters. It is suspected that many/most of these free >space btree corruptions, such as yours here, are caused by data in >caches not being flushed to the platters. SAN/RAID controllers with >BBWC usually guarantee data in the write cache gets properly flushed to >the platters when the system comes back up. Makes total sense. Thanks so much. -- View this message in context: http://old.nabble.com/mount%3A-Structure-needs-cleaning-tp33393100p33401743.html Sent from the Xfs - General mailing list archive at Nabble.com. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs