X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id 53B8F52984 for ; Thu, 23 Jun 2005 11:44:55 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 56712-06 for ; Thu, 23 Jun 2005 14:44:50 +0000 (GMT) Received: from vms042pub.verizon.net (vms042pub.verizon.net [206.46.252.42]) by svr1.postgresql.org (Postfix) with ESMTP id 146FF52862 for ; Thu, 23 Jun 2005 11:44:48 -0300 (ADT) Received: from osgiliath.mathom.us ([70.108.108.63]) by vms042.mailsrvcs.net (Sun Java System Messaging Server 6.2 HotFix 0.04 (built Dec 24 2004)) with ESMTPA id <0IIJ00BVPKYS3BS1@vms042.mailsrvcs.net> for pgsql-performance@postgresql.org; Thu, 23 Jun 2005 09:44:53 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by osgiliath.mathom.us (Postfix) with ESMTP id 72D07603DCC for ; Thu, 23 Jun 2005 10:44:52 -0400 (EDT) Received: from osgiliath.mathom.us ([127.0.0.1]) by localhost (osgiliath [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 08009-03-10 for ; Thu, 23 Jun 2005 10:44:52 -0400 (EDT) Received: by osgiliath.mathom.us (Postfix, from userid 1000) id 5A805600657; Thu, 23 Jun 2005 10:44:52 -0400 (EDT) Date: Thu, 23 Jun 2005 10:44:52 -0400 From: Michael Stone Subject: Re: Performance Tuning Article In-reply-to: <42BA1F01.1010700@NarrowPathInc.com> To: pgsql-performance@postgresql.org Mail-Followup-To: pgsql-performance@postgresql.org Message-id: <20050623144452.GB9591@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: <20050622095227.05938982.frank@wiles.org> <200506221016.03808.josh@agliodbs.com> <20050622124232.71b05e3f.frank@wiles.org> <42BA1F01.1010700@NarrowPathInc.com> User-Agent: Mutt/1.5.9i X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.036 tagged_above=0 required=5 tests=AWL, FORGED_RCVD_HELO X-Spam-Level: X-Archive-Number: 200506/455 X-Sequence-Number: 13092 On Wed, Jun 22, 2005 at 10:31:29PM -0400, Keith Worthington wrote: >Use RAID 10 (striping across mirrored disks) > or RAID 0+1 (mirror a striped array) for your data. yikes! never tell an unsuspecting person to use mirred stripes--that configuration has lower reliability and performance than striped mirrors with no redeeming qualities. Mike Stone