Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 0248264FD04 for ; Tue, 15 Jul 2008 01:25:06 -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 57869-02-6 for ; Tue, 15 Jul 2008 01:24:34 -0300 (ADT) Received: from mx1.hub.org (mx1.hub.org [200.46.208.106]) by postgresql.org (Postfix) with ESMTP id 2DF02650749 for ; Tue, 15 Jul 2008 01:17:00 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from westnet.com (westnet.com [216.187.52.2]) by mx1.hub.org (Postfix) with ESMTP id 89595B0770B for ; Tue, 15 Jul 2008 01:16:56 -0300 (ADT) Received: from westnet.com (localhost [127.0.0.1]) by westnet.com (8.14.0/8.14.0) with ESMTP id m6F4DQkk007638; Tue, 15 Jul 2008 00:13:26 -0400 (EDT) Received: from localhost (gsmith@localhost) by westnet.com (8.14.0/8.13.2/Submit) with ESMTP id m6F4DQOZ007631; Tue, 15 Jul 2008 00:13:26 -0400 (EDT) X-Authentication-Warning: westnet.com: gsmith owned process doing -bs Date: Tue, 15 Jul 2008 00:13:26 -0400 (EDT) From: Greg Smith X-X-Sender: gsmith@westnet.com To: Jeffrey Baker cc: 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: 200807/129 X-Sequence-Number: 30729 On Fri, 11 Jul 2008, Jeffrey Baker wrote: > Their firmware is, frankly, garbage. In more than one instance we > have had the card panic when a disk fails, which is obviously counter > to the entire purpose of a RAID. We finally removed the Areca > controllers from our database server and replaced them with HP P800s. Can you give a bit more detail here? If what you mean is that the driver for the card generated an OS panic when a drive failed, that's not necessarily the firmware at all. I know I had problems with the Areca cards under Linux until their driver went into the mainline kernel in 2.6.19, all kinds of panics under normal conditions. Haven't seen anything like that with later Linux kernels or under Solaris 10, but then again I haven't had a disk failure yet either. -- * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD