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 q3D7J8c8005618 for ; Fri, 13 Apr 2012 02:19:08 -0500 Received: from smtp.pobox.com (b-pb-sasl-quonix.pobox.com [208.72.237.35]) by cuda.sgi.com with ESMTP id Cz6GH2fXDGF0p7jQ for ; Fri, 13 Apr 2012 00:19:06 -0700 (PDT) Date: Fri, 13 Apr 2012 08:19:05 +0100 From: Brian Candler Subject: Re: Fragmentation Issue We Are Having Message-ID: <20120413071905.GA823@nsrc.org> References: <20120412075747.GB30891@nsrc.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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: David Fuller Cc: xfs@oss.sgi.com On Thu, Apr 12, 2012 at 05:09:40PM -0700, David Fuller wrote: > The total LVM volume group is 4.5 TB. The logical volume is around > 2.3TB where the mysql data Hence you have a 2.3TB XFS filesystem? You need inode64. The side warning "performance sucks" is very true. In particular, if you create a bunch of files in the same directory, without inode64 XFS will scatter the extents all over the disk rather than trying to allocate them next to each other (possibly not a problem if you're only storing mysql data chunks though) _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs