Received: from localhost (unknown [200.46.204.183]) by developer.postgresql.org (Postfix) with ESMTP id A9A162E006B for ; Tue, 6 May 2008 22:58:20 -0300 (ADT) Received: from developer.postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 15882-08-2 for ; Tue, 6 May 2008 22:57:49 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.5 Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.182]) by developer.postgresql.org (Postfix) with ESMTP id 4F8D32E0052 for ; Tue, 6 May 2008 22:57:55 -0300 (ADT) Received: by wa-out-1112.google.com with SMTP id n4so124230wag.5 for ; Tue, 06 May 2008 18:57:53 -0700 (PDT) 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=Dt7GxD/va4uj/tVNSv33V0TwZyMTVqds9AJdbPNTB3c=; b=C4pvmRitu+Fsw9EUMXIsViF3OmVGuFlYLlqIA1ZiZ0vyXsu4pEGTx036zkMF0HYwlK2P4x9hVM+fO/AhNZsih5n5qLUeL1zYX+F7R7lyY1n6TEKYXlijDaPi0snxr8DFomwUCPT7VBOR4B9EzIEG5RZTo/3QrO6HA9b9pum3efU= 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=Gd+caGY85CljPWIFkGAUy/YUCpjieJPfJCOQ7xgqStdmcG4yWavKIyLfTg76f+NhqDQ8KgdW05BiNRrpK7/BrNkD2azSpYxU/vHZXl1u2fcuMsNuypPIMHfYRd+UKnXPZXUe1MoOdfRAVfGKOByhmaFtaWFknJNj27ZAH9vbttA= Received: by 10.114.193.1 with SMTP id q1mr1377364waf.75.1210125473744; Tue, 06 May 2008 18:57:53 -0700 (PDT) Received: by 10.114.137.7 with HTTP; Tue, 6 May 2008 18:57:53 -0700 (PDT) Message-ID: Date: Tue, 6 May 2008 19:57:53 -0600 From: "Scott Marlowe" To: "Dennis Muhlestein" Subject: Re: Possible Redundancy/Performance Solution Cc: pgsql-performance@postgresql.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200805/113 X-Sequence-Number: 30081 On Tue, May 6, 2008 at 3:39 PM, Dennis Muhlestein wrote: > Those are good points. So you'd go ahead and add the pgpool in front (or > another redundancy approach, but then use raid1,5 or perhaps 10 on each > server? That's what I'd do. specificall RAID10 for small to medium drive sets used for transactional stuff, and RAID6 for very large reporting databases that are mostly read.