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 p6685Axc091427 for ; Wed, 6 Jul 2011 03:05:11 -0500 Date: Wed, 6 Jul 2011 04:05:05 -0400 From: Christoph Hellwig Subject: Re: XFS internal error (memory corruption) Message-ID: <20110706080505.GA2354@infradead.org> References: <4E12A927.9020102@gmail.com> <20110705130932.GF1026@dastard> <4E1313C1.6020309@gmail.com> <20110706040403.GW1026@dastard> <20110706070756.GA25800@infradead.org> <20110706072221.GZ1026@dastard> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20110706072221.GZ1026@dastard> 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: Dave Chinner Cc: Christoph Hellwig , xfs-masters@oss.sgi.com, xfs@oss.sgi.com, Linux Kernel Mailing List , T?r?k Edwin On Wed, Jul 06, 2011 at 05:22:21PM +1000, Dave Chinner wrote: > Unless you have a good sized chunk of BBWC in front of your disks, > in which case internal logs are just as fast. In fact, internal logs > can are often faster in this case because an internal log on a 12 > disk RAID6 array can sink a whole log more bandwidth than an external > log on a 2-disk RAID0 mirror..... > > At least, that's what my hardware tells me. ;) Sure, a nice BBWC setup will give you good results. But it's generally much more expensive than a simple setup with a raid5 or 6 and a mirror for the log device. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs