Received: from maia.hub.org (maia-4.hub.org [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id 03547633C9E for ; Wed, 28 Apr 2010 19:13:03 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 67460-04 for ; Wed, 28 Apr 2010 22:12:52 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail-gy0-f174.google.com (mail-gy0-f174.google.com [209.85.160.174]) by mail.postgresql.org (Postfix) with ESMTP id 8C95B633BC7 for ; Wed, 28 Apr 2010 19:12:52 -0300 (ADT) Received: by gyg13 with SMTP id 13so7596370gyg.19 for ; Wed, 28 Apr 2010 15:12:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=mx4CJCz2+Zy43KyV5zXqBcA+goAqbkAkfh5nCINxDW4=; b=jma6SQftogQm2RwyGaWJM/qwjXflrYe+rRVzJJ4qG5UD5pSn2yS9Bi2H16s49fb097 8y/KyeNx/po0+/xlXt2VoVDkleJ0+8EsHzJ0Rxi0LsBvdeILA7Mu/Rovvr/NaIByT3ug F0B7XHLV9GtQqbX0ZgFItv/i6Myjg2QJtUvmI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=g6QK2qqF+g5+yQQ1ll8pkKb/88RTmvIdEbkqn+2BLfwH5MZtpX2+dR9Dfjq7yGnpws oEr2J0ziPmBL5hKWRfsWOS4CisYoqei0x/7y8WbBJBFAWDFft4jy+ZF/3ntK2CpwtPRq xkQvvX8J/G3qqFf85QUXjMrO12kDpuET1yVMs= MIME-Version: 1.0 Received: by 10.151.87.6 with SMTP id p6mr421107ybl.320.1272492771296; Wed, 28 Apr 2010 15:12:51 -0700 (PDT) Received: by 10.150.134.20 with HTTP; Wed, 28 Apr 2010 15:12:51 -0700 (PDT) In-Reply-To: References: <1272486554.16259.73.camel@deimos> Date: Wed, 28 Apr 2010 16:12:51 -0600 Message-ID: Subject: Re: more 10K disks or less 15K disks From: Scott Marlowe To: Anj Adu Cc: =?ISO-8859-1?Q?I=F1igo_Martinez_Lasala?= , pgsql-admin@postgresql.org Content-Type: text/plain; charset=ISO-8859-1 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, FREEMAIL_FROM=0.001 X-Spam-Level: X-Archive-Number: 201004/344 X-Sequence-Number: 34438 On Wed, Apr 28, 2010 at 3:18 PM, Anj Adu wrote: > Thank you all for the comments > > We have not benchmarked the new hardware yet..however..we do have > existing hardware that deals with very high volumes and handle pretty > well (Dell 2950 Intel 5430 8-cores with 6x450G 15K disks and 32G RAM - > Perc 6iRaid controllers) with minimal IO wait . there are ususally > about10-15 threads running at peak time with an average of 4-10 > threads overall. > > We are looking at high density boxes due to increasing storage requirements. I assume the 24 2.5" box is the supermicro 2U machine? Those are quite impressive little chassis's. If you need something bigger, take a look at this: http://www.aberdeeninc.com/abcatg/Stirling-X881.htm You can add up to 8 16 disk JBOD boxes to it if needs be as well.