From owner-freebsd-questions@FreeBSD.ORG Wed Jan 12 23:24:21 2005 Return-Path: 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 68D5D16A4CE for ; Wed, 12 Jan 2005 23:24:21 +0000 (GMT) Received: from web53803.mail.yahoo.com (web53803.mail.yahoo.com [206.190.36.198]) by mx1.FreeBSD.org (Postfix) with SMTP id E666243D46 for ; Wed, 12 Jan 2005 23:24:20 +0000 (GMT) (envelope-from stigmata_blackangel@yahoo.com) Received: (qmail 45949 invoked by uid 60001); 12 Jan 2005 23:24:20 -0000 Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; b=v0gQGA2F+j5StvpgZITIQ8jZtiqoH75yMuqlDAHT5zY8oNMFZV+ukD4ORteiaTq0DMy6eYLTw27FCWWEbRvUIVGxNVf5duJaYuZi2nSfzoIZKwU7yDXteCDJk8OJXyRmzsVn/MBvSlmOZw6NED0t3q4IRWmqGQjXT8j9+n2ESko= ; Message-ID: <20050112232420.45947.qmail@web53803.mail.yahoo.com> Received: from [24.9.155.250] by web53803.mail.yahoo.com via HTTP; Wed, 12 Jan 2005 15:24:20 PST Date: Wed, 12 Jan 2005 15:24:20 -0800 (PST) From: Gregor Mosheh To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: server replication? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jan 2005 23:24:21 -0000 My employer is looking for solutions to achieve zero-downtime in the event of a hardware failure. I've been doing sysadmin for some time, but this is out of my league, and I wanted to ask the list for any advice, hints, etc. For starters, how does such a solution work conceptually? The possibility of load-balancing appliances has been suggested; how does this work with user databases and uploaded files? Our services are primarily web-based and do involve a significant amount of users uploading files, and database (postgres) work. __________________________________ Do you Yahoo!? All your favorites on one personal page – Try My Yahoo! http://my.yahoo.com