Received: from localhost (maia-5.hub.org [200.46.204.182]) by postgresql.org (Postfix) with ESMTP id 904459F96ED for ; Tue, 21 Aug 2007 19:20:07 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.182]) (amavisd-maia, port 10024) with ESMTP id 15466-04 for ; Tue, 21 Aug 2007 19:19:57 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.5 Received: from rv-out-0910.google.com (rv-out-0910.google.com [209.85.198.184]) by postgresql.org (Postfix) with ESMTP id 5D72B9F928B for ; Tue, 21 Aug 2007 19:20:01 -0300 (ADT) Received: by rv-out-0910.google.com with SMTP id l15so1267777rvb for ; Tue, 21 Aug 2007 15:20:00 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; 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; b=GqBgE8IiZn+u8KCT+K2y0M7oTgnWsz9bRmF/KuYwMyE9uCmiP9Ra7EJyfq3RzXB03ywXNvrfVoBqNe2sAnk4j8Ypz5apu9BJ6x7ku30tJSjMSmG83vVMhVHR/ybbRdweRIkRptHM3ca49YUlo5zxJDRWAqxaZBQrcBNxpt9MYnQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=flSnmptQESXE0pp7Mkanh0lmHwkv5gxL7mOJGVj2n527MrYIgCpYVq4/ge5Z6H+VIR7BIcqSbYRila874R2brfqlyjMltU1BMy8wCFtL9HUWvgcDBJG+lhktetpkNr+K3IU4dH0GwULKwD/aHxzZpP9Ed7HmZxKUpL1xPy9Y0JQ= Received: by 10.141.20.7 with SMTP id x7mr3686401rvi.1187734799921; Tue, 21 Aug 2007 15:19:59 -0700 (PDT) Received: by 10.141.98.12 with HTTP; Tue, 21 Aug 2007 15:19:59 -0700 (PDT) Message-ID: Date: Tue, 21 Aug 2007 17:19:59 -0500 From: "Scott Marlowe" To: "Sachchida Ojha" Subject: Re: Autovacuum is running forever Cc: "Michael Glaesemann" , 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: 200708/225 X-Sequence-Number: 26355 On 8/21/07, Sachchida Ojha wrote: > We are having only two disk (40GB each). One disk is used for OS, App > Server, and application. Second disk is used for postgresql database. > It's a dual cpu machine having 2 GB of ram. Even a single disk, with a battery backed caching controller will generally run things like updates and inserts much faster, and is usually a much better performance under load than a single disk. I'd at least look at mirroring them for redundancy and better read performance.