Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id E4FA69F945C for ; Mon, 5 Nov 2007 12:32:40 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 07680-03 for ; Mon, 5 Nov 2007 12:32:35 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from westnet.com (westnet.com [216.187.52.2]) by postgresql.org (Postfix) with ESMTP id 63E759F9457 for ; Mon, 5 Nov 2007 12:32:35 -0400 (AST) Received: from westnet.com (localhost [127.0.0.1]) by westnet.com (8.14.0/8.14.0) with ESMTP id lA5GWSJH001466; Mon, 5 Nov 2007 11:32:28 -0500 (EST) Received: from localhost (gsmith@localhost) by westnet.com (8.14.0/8.13.2/Submit) with ESMTP id lA5GWSj2001462; Mon, 5 Nov 2007 11:32:28 -0500 (EST) X-Authentication-Warning: westnet.com: gsmith owned process doing -bs Date: Mon, 5 Nov 2007 11:32:28 -0500 (EST) From: Greg Smith X-X-Sender: gsmith@westnet.com To: Claus Guttesen cc: PostgreSQL Performance Subject: Re: hp ciss on freebsd In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200711/59 X-Sequence-Number: 27474 On Mon, 5 Nov 2007, Claus Guttesen wrote: > Is the ciss-controller found in HP-servers a "better" raid-controller > compared to the areca-raid-controller mentioned on this list? If you search the archives for "cciss" you'll see a few complaints about this controller not working all that well under Linux. The smart thing to do regardless of what other people say is to test yourself and see if you're meeting expectations. I've got a sample of how a single disk performs with an Areca controller you can use as a baseline at http://www.westnet.com/~gsmith/content/postgresql/pg-disktesting.htm -- * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD