From owner-freebsd-questions@FreeBSD.ORG Mon May 15 12:48:26 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8FFA816A4FB for ; Mon, 15 May 2006 12:48:26 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from pi.codefab.com (pi.codefab.com [199.103.21.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 125D243D5A for ; Mon, 15 May 2006 12:48:24 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from localhost (localhost [127.0.0.1]) by pi.codefab.com (Postfix) with ESMTP id 002415FC3; Mon, 15 May 2006 08:48:23 -0400 (EDT) X-Virus-Scanned: amavisd-new at codefab.com Received: from pi.codefab.com ([127.0.0.1]) by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0pfzJ19sm8Q4; Mon, 15 May 2006 08:48:23 -0400 (EDT) Received: from [192.168.1.251] (pool-68-160-242-211.ny325.east.verizon.net [68.160.242.211]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pi.codefab.com (Postfix) with ESMTP id 077F05C3C; Mon, 15 May 2006 08:48:22 -0400 (EDT) Message-ID: <44687892.9070508@mac.com> Date: Mon, 15 May 2006 08:48:18 -0400 From: Chuck Swiger User-Agent: Thunderbird 1.5.0.2 (Windows/20060308) MIME-Version: 1.0 To: Vampire D References: <4ca8a4870605141104i69aea6c8tef3fb7c795cf3911@mail.gmail.com> In-Reply-To: <4ca8a4870605141104i69aea6c8tef3fb7c795cf3911@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: Mail Replication X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 May 2006 12:48:27 -0000 Vampire D wrote: > Any advice / suggestions would be great. We are trying to build a > completely automated fail over solution for two servers using Apache, > mySQL, > PHP, and Postfix within a small monthly budget. If your budget is less than $10K, don't even bother to try to set up a fault-tolerant cluster; you're better off spending more on a high-quality single machine with RAID-1 or -10 disk config, hot spare drive, and dual power supplies...and tape backup, most importantly. Trying to implement a highly reliable cluster on cheap hardware is almost certainly going to prove futile or even counterproductive. How are you going to handle a split-horizon condition? -- -Chuck