Received: from localhost (maia-2.hub.org [200.46.204.187]) by postgresql.org (Postfix) with ESMTP id 9CCFC9FBB08 for ; Wed, 11 Jul 2007 16:43:57 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.187]) (amavisd-maia, port 10024) with ESMTP id 76513-10 for ; Wed, 11 Jul 2007 16:43:44 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from lists.commandprompt.com (host-254.commandprompt.net [207.173.203.254]) by postgresql.org (Postfix) with ESMTP id 383749FB747 for ; Wed, 11 Jul 2007 16:43:54 -0300 (ADT) Received: from [192.168.1.50] (or-67-76-146-141.sta.embarqhsd.net [67.76.146.141]) (authenticated bits=0) by lists.commandprompt.com (8.13.7/8.13.6) with ESMTP id l6BJhr7n007112; Wed, 11 Jul 2007 12:43:54 -0700 Message-ID: <46953359.5060404@commandprompt.com> Date: Wed, 11 Jul 2007 12:45:29 -0700 From: "Joshua D. Drake" User-Agent: Thunderbird 1.5.0.12 (X11/20070604) MIME-Version: 1.0 To: Francisco Reyes CC: Alan Hodgson , pgsql-performance@postgresql.org Subject: Re: WALL on controller without battery? References: <20070711153620.GP1241@phlogiston.dyndns.org> <200707110847.44612@hal.medialogik.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.90.3/3634/Tue Jul 10 18:14:01 2007 on projects.commandprompt.com X-Virus-Status: Clean X-Greylist: Sender succeded SMTP AUTH authentication, not delayed by milter-greylist-1.6 (lists.commandprompt.com [192.168.2.159]); Wed, 11 Jul 2007 12:43:54 -0700 (PDT) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200707/117 X-Sequence-Number: 25801 Francisco Reyes wrote: > Alan Hodgson writes: > >> I would spring for a 4-port with a BBU, though, and then put the WAL >> on the drives with the OS. > > The machine is already over budget. :-( > I will check the price difference but unlikely I will get approval. Without a BBU you are guaranteed at some point to have catastrophic failure unless you turn off write cache, which would then destroy your performance. Joshua D. Drake > > ---------------------------(end of broadcast)--------------------------- > TIP 7: You can help support the PostgreSQL project by donating at > > http://www.postgresql.org/about/donate > -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since 1997 http://www.commandprompt.com/ Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate PostgreSQL Replication: http://www.commandprompt.com/products/