X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 233509DD634 for ; Tue, 6 Dec 2005 20:25:35 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 45032-06 for ; Tue, 6 Dec 2005 20:25:37 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from vms046pub.verizon.net (vms046pub.verizon.net [206.46.252.46]) by postgresql.org (Postfix) with ESMTP id E1CF19DD621 for ; Tue, 6 Dec 2005 20:25:32 -0400 (AST) Received: from osgiliath.mathom.us ([70.108.82.27]) by vms046.mailsrvcs.net (Sun Java System Messaging Server 6.2-4.02 (built Sep 9 2005)) with ESMTPA id <0IR300GCSQINS594@vms046.mailsrvcs.net> for pgsql-performance@postgresql.org; Tue, 06 Dec 2005 18:25:36 -0600 (CST) Received: from localhost (localhost [127.0.0.1]) by osgiliath.mathom.us (Postfix) with ESMTP id D9AFC60017B for ; Tue, 06 Dec 2005 19:25:37 -0500 (EST) Received: from osgiliath.mathom.us ([127.0.0.1]) by localhost (osgiliath [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 10575-03 for ; Tue, 06 Dec 2005 19:25:37 -0500 (EST) Received: by osgiliath.mathom.us (Postfix, from userid 1000) id B25D7600176; Tue, 06 Dec 2005 19:25:37 -0500 (EST) Date: Tue, 06 Dec 2005 19:25:37 -0500 From: Michael Stone Subject: Re: LVM and Postgres In-reply-to: <20051206213623.GD14427@campbell-lange.net> To: pgsql-performance@postgresql.org Mail-followup-to: pgsql-performance@postgresql.org Message-id: <20051207002537.GN7330@mathom.us> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii; format=flowed Content-disposition: inline X-Pgp-Fingerprint: 53 FF 38 00 E7 DD 0A 9C 84 52 84 C5 EE DF 7C 88 X-Virus-Scanned: by amavisd-new-20030616-p10 (Debian) at mathom.us References: <20051206093818.GE6708@campbell-lange.net> <20051206213623.GD14427@campbell-lange.net> User-Agent: Mutt/1.5.11 X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0 required=5 tests=[none] X-Spam-Score: 0 X-Spam-Level: X-Archive-Number: 200512/208 X-Sequence-Number: 16029 On Tue, Dec 06, 2005 at 09:36:23PM +0000, Rory Campbell-Lange wrote: >Yes, we don't have any spare disks unfortunately. We have enabled the >BBU write, so we are hoping for good performance. Even if you don't use seperate disks you'll probably get better performance by putting the WAL on a seperate ext2 partition. xfs gives good performance for the table data, but is not particularly good for the WAL. Mike Stone