Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 84B2A6501AC for ; Mon, 11 Aug 2008 12:56:29 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 70443-03 for ; Mon, 11 Aug 2008 12:56:25 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from westnet.com (westnet.com [216.187.52.2]) by postgresql.org (Postfix) with ESMTP id 4240F6501A4 for ; Mon, 11 Aug 2008 12:56:26 -0300 (ADT) Received: from westnet.com (localhost [127.0.0.1]) by westnet.com (8.14.0/8.14.0) with ESMTP id m7BFuM0c003846; Mon, 11 Aug 2008 11:56:22 -0400 (EDT) Received: from localhost (gsmith@localhost) by westnet.com (8.14.0/8.13.2/Submit) with ESMTP id m7BFuMXg003834; Mon, 11 Aug 2008 11:56:22 -0400 (EDT) X-Authentication-Warning: westnet.com: gsmith owned process doing -bs Date: Mon, 11 Aug 2008 11:56:22 -0400 (EDT) From: Greg Smith X-X-Sender: gsmith@westnet.com To: Henrik cc: pgsql-performance@postgresql.org Subject: Re: Filesystem benchmarking for pg 8.3.3 server In-Reply-To: <0E80D962-22F4-4669-B09F-E1E44449BF76@mac.se> Message-ID: References: <32A7A76B-16CA-4CDB-AD43-973AD6A3FC7B@mac.se> <0E80D962-22F4-4669-B09F-E1E44449BF76@mac.se> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200808/110 X-Sequence-Number: 30991 On Sun, 10 Aug 2008, Henrik wrote: >> Normally, when a SATA implementation is running significantly faster than a >> SAS one, it's because there's some write cache in the SATA disks turned on >> (which they usually are unless you go out of your way to disable them). > Lucky for my I have BBU on all my controllers cards and I'm also not using > the SATA drives for database.