Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 4342F650315 for ; Fri, 11 Jul 2008 21:39:29 -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 01290-03 for ; Fri, 11 Jul 2008 21:39:08 -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 DA3C965003C for ; Fri, 11 Jul 2008 21:39:10 -0300 (ADT) Received: from westnet.com (localhost [127.0.0.1]) by westnet.com (8.14.0/8.14.0) with ESMTP id m6C0d9D2010523; Fri, 11 Jul 2008 20:39:09 -0400 (EDT) Received: from localhost (gsmith@localhost) by westnet.com (8.14.0/8.13.2/Submit) with ESMTP id m6C0d9ba010519; Fri, 11 Jul 2008 20:39:09 -0400 (EDT) X-Authentication-Warning: westnet.com: gsmith owned process doing -bs Date: Fri, 11 Jul 2008 20:39:09 -0400 (EDT) From: Greg Smith X-X-Sender: gsmith@westnet.com To: Jeff cc: Jeff , Pgsql performance Subject: Re: 3ware vs Areca In-Reply-To: Message-ID: References: <581D2333-E731-4843-BC31-39840E272C62@torgo.978.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200807/114 X-Sequence-Number: 30714 On Fri, 11 Jul 2008, Jeff wrote: > Yeah, it'd be fun to run more benchmarks, but the beefy box, for some reason, > is a prod box busy 24/7. no time to nuke it and fidgit :) If you've got an existing array and you want to switch to another controller, that may not work without nuking no matter what. One other reason to consider software RAID on top of a hardware controller running JBOD mode is that there's no standard for how striping/mirroring is done, so you can't just move a set of RAID disks to another brand of controller normally. That's no problem with software RAID. -- * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD