Received: from localhost (unknown [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id 7F8012E0090 for ; Wed, 13 Feb 2008 11:56:35 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 89723-06 for ; Wed, 13 Feb 2008 11:56:15 -0400 (AST) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.172]) by postgresql.org (Postfix) with ESMTP id C128A2E0150 for ; Wed, 13 Feb 2008 11:56:24 -0400 (AST) Received: by ug-out-1314.google.com with SMTP id j3so751832ugf.49 for ; Wed, 13 Feb 2008 07:56:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=OCL0BoGv3l2VCO86czNbX/mIf8K7mi11qjKG0En2tZU=; b=t/UpocEe5Sankeza3RTC4vJP+iOrwg737R5dAlG0iy3IqiCDr4Zny5Cw974HSkxM3MWb64aYB3fr6Bcxoj4/Fj0S8cxBFgOzwebM6pcsP3Ehj5W4s3nidzxZeq+XK7r6USZCw1Rra7KwGcyqN5sSM4TyvEb5aexaNihpxCJvfMw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=bUvNNEO2hUPv0Fi/R/wCMLa2aE2/ZwdTw9UN173Lfj4kS1a24BXoKDxioo9BC+R6HLfkY8GiZmG9tHrmPNNH/RWeFB6bO47WpgbOBs7/SpQ9UQfTRHSj7km6v83jol5Ga0fhZzCml0GaWw/EwNBWuO0s10tJ7tMoM/qEGNbdj2A= Received: by 10.78.161.4 with SMTP id j4mr72872hue.49.1202918182360; Wed, 13 Feb 2008 07:56:22 -0800 (PST) Received: by 10.78.58.8 with HTTP; Wed, 13 Feb 2008 07:56:22 -0800 (PST) Message-ID: Date: Wed, 13 Feb 2008 10:56:22 -0500 From: "Merlin Moncure" To: "Tore Halset" Subject: Re: Dell Perc/6 Cc: "Craig James" , pgsql-performance@postgresql.org In-Reply-To: <2BB8254A-6417-4B02-9239-90FC203D1E83@pvv.ntnu.no> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1202150236.4252.521.camel@ebony.site> <20080208121619.cbfeaa08.markwkm@gmail.com> <47B1CA1A.70401@emolecules.com> <2BB8254A-6417-4B02-9239-90FC203D1E83@pvv.ntnu.no> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200802/139 X-Sequence-Number: 28681 On Feb 13, 2008 5:02 AM, Tore Halset wrote: > Hello. > > I think I started that discussion. We ended up buying a Dell 2900 with > PERC 6/i and 10 * 145GB SAS 3,5" 15KRpm discs. 6 of the SAS discs are > in a raid 10 for the database, 2 in a mirror for the wal and the last > 2 in a mirror for the OS. We get 350MB/s writing and 380MB/s reading > to/from the raid 10 area using dd. The OS is Ubuntu and the filesystem > for the raid 10 is ext3. Those are decent numbers. Can you do a bonnie++ run and post the results (specifically interested in seeks)? merlin