Received: from localhost (unknown [200.46.204.182]) by postgresql.org (Postfix) with ESMTP id 0E68B9F9250 for ; Thu, 8 Nov 2007 16:56:09 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.182]) (amavisd-maia, port 10024) with ESMTP id 53547-04 for ; Thu, 8 Nov 2007 16:56:03 -0400 (AST) Received: from skynet.simkin.ca (skynet.simkin.ca [72.51.27.117]) by postgresql.org (Postfix) with ESMTP id 81CF39F924E for ; Thu, 8 Nov 2007 16:56:05 -0400 (AST) Received: from charon.medialogik.com (charon.medialogik.com [72.51.27.114]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by skynet.simkin.ca (Postfix) with ESMTP id 26DA24008 for ; Thu, 8 Nov 2007 12:56:04 -0800 (PST) From: Alan Hodgson Organization: Simkin Network Consulting To: pgsql-performance@postgresql.org Subject: Re: dell versus hp Date: Thu, 8 Nov 2007 12:56:41 -0800 User-Agent: KMail/1.9.6 (enterprise 0.20070907.709405) References: <82607932-FC46-4B73-BF78-2290EE55F7F5@pvv.ntnu.no> <200711082114.36788.dfontaine@hi-media.com> In-Reply-To: <200711082114.36788.dfontaine@hi-media.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200711081256.41880@hal.medialogik.com> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200711/113 X-Sequence-Number: 27528 On Thursday 08 November 2007, Dimitri Fontaine > Is raid6 better than raid10 in term of overall performances, or a better > cut when you need capacity more than throughput? You can't touch RAID 10 for performance or reliability. The only reason to use RAID 5 or RAID 6 is to get more capacity out of the same drives. -- Alan