Received: from localhost (unknown [200.46.204.184]) by developer.postgresql.org (Postfix) with ESMTP id 1BEC32E0047 for ; Mon, 7 Apr 2008 17:40:18 -0300 (ADT) Received: from developer.postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 96525-05 for ; Mon, 7 Apr 2008 17:40:10 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from westnet.com (westnet.com [216.187.52.2]) by developer.postgresql.org (Postfix) with ESMTP id A04052E0046 for ; Mon, 7 Apr 2008 17:40:14 -0300 (ADT) Received: from westnet.com (localhost [127.0.0.1]) by westnet.com (8.14.0/8.14.0) with ESMTP id m37KeD1k001306 for ; Mon, 7 Apr 2008 16:40:13 -0400 (EDT) Received: from localhost (gsmith@localhost) by westnet.com (8.14.0/8.13.2/Submit) with ESMTP id m37KeDke001302 for ; Mon, 7 Apr 2008 16:40:13 -0400 (EDT) X-Authentication-Warning: westnet.com: gsmith owned process doing -bs Date: Mon, 7 Apr 2008 16:40:13 -0400 (EDT) From: Greg Smith X-X-Sender: gsmith@westnet.com To: pgsql-performance@postgresql.org Subject: Re: Looking for bottleneck during load test In-Reply-To: <20080407162008.c70fbb38.wmoran@collaborativefusion.com> Message-ID: References: <20080407162008.c70fbb38.wmoran@collaborativefusion.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200804/75 X-Sequence-Number: 29568 On Mon, 7 Apr 2008, Bill Moran wrote: > You know, with all the performance problems people have been bringing up > with regard to SANs, I'm putting SAN in the same category as RAID-5 ... Not really fair, because unlike RAID5 it's at least *possible* to get good write performance out of a SAN. Just harder than most people think it is. -- * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD