Received: from localhost (unknown [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id 2A53264FFB3 for ; Wed, 10 Dec 2008 08:29:28 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 16951-09 for ; Wed, 10 Dec 2008 08:29:24 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mx.inode.at (mx15.lb01.inode.at [62.99.145.17]) by mail.postgresql.org (Postfix) with ESMTP id 7856664FEF1 for ; Wed, 10 Dec 2008 08:29:23 -0400 (AST) Received: from [85.124.56.44] (port=9639 helo=[10.192.17.33]) by smartmx-15.inode.at with esmtp (Exim 4.50) id 1LAOBq-0007WP-HV; Wed, 10 Dec 2008 13:29:19 +0100 Message-ID: <493FB619.5060205@sime.com> Date: Wed, 10 Dec 2008 13:29:13 +0100 From: Mario Weilguni User-Agent: Thunderbird 2.0.0.18 (X11/20081125) MIME-Version: 1.0 To: Aidan Van Dyk CC: "Joshua D. Drake" , Scott Marlowe , pgsql-performance@postgresql.org Subject: Re: Experience with HP Smart Array P400 and SATA drives? References: <4934FE60.30702@sime.com> <493E6023.3030800@sime.com> <1228838308.13962.0.camel@jd-laptop.pragmaticzealot.org> <20081209161750.GO26596@yugib.highrise.ca> In-Reply-To: <20081209161750.GO26596@yugib.highrise.ca> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200812/112 X-Sequence-Number: 32148 Aidan Van Dyk schrieb: > * Joshua D. Drake [081209 11:01]: > > >> Yes the SmartArray series is quite common and actually know to perform >> reasonably well, in RAID 10. You still appear to be trying RAID 5. >> > > *boggle* > > Are people *still* using raid5? > > /me gives up! > > Why not? I know it's not performing as good as RAID-10, but it does not waste 50% diskspace. RAID-6 is no option, because the performance is even worse. And, on another system with RAID-5 + spare and SAS drives, the same controller is working very well.