Received: from maia.hub.org (maia-3.hub.org [200.46.204.243]) by mail.postgresql.org (Postfix) with ESMTP id 11693B5DC72 for ; Tue, 13 Sep 2011 03:32:24 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.243]) (amavisd-maia, port 10024) with ESMTP id 53088-01 for ; Tue, 13 Sep 2011 06:30:39 +0000 (UTC) Received: from mx1.hub.org (mx1.hub.org [200.46.208.106]) by mail.postgresql.org (Postfix) with ESMTP id 76A54B5DC40 for ; Tue, 13 Sep 2011 03:30:39 -0300 (ADT) X-Greylist: delayed 00:07:32.701155 by SQLgrey-1.7.6 Received: from adonis.tweakers.net (adonis.tweakers.net [213.239.154.11]) by mx1.hub.org (Postfix) with ESMTP id 0C30E2801A10 for ; Tue, 13 Sep 2011 03:30:21 -0300 (ADT) Received: from [192.168.0.15] (h101063.upc-h.chello.nl [62.194.101.63]) by adonis.tweakers.net (Postfix) with ESMTPSA id 0B98920E2C for ; Tue, 13 Sep 2011 08:22:04 +0200 (CEST) Message-ID: <4E6EF68B.8020702@tweakers.net> Date: Tue, 13 Sep 2011 08:22:03 +0200 From: Arjen van der Meijden User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20110902 Thunderbird/6.0.2 MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Re: RAID Controller (HP P400) beat by SW-RAID? References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.899 tagged_above=-10 required=5 tests=BAYES_00=-1.9, NO_DNS_FOR_FROM=0.001 X-Spam-Level: X-Archive-Number: 201109/181 X-Sequence-Number: 44957 On 12-9-2011 0:44 Anthony Presley wrote: > A few weeks back, we purchased two refurb'd HP DL360's G5's, and were > hoping to set them up with PG 9.0.2, running replicated. These machines > have (2) 5410 Xeon's, 36GB of RAM, (6) 10k SAS drives, and are using the > HP SA P400i with 512MB of BBWC. PG is running on an ext4 (noatime) > partition, and they drives configured as RAID 1+0 (seems with this > controller, I cannot do JBOD). If you really want a JBOD-setup, you can try a RAID0 for each available disk, i.e. in your case 6 separate RAID0's. That's how we configured our Dell H700 - which doesn't offer JBOD as well - for ZFS. Best regards, Arjen