From owner-freebsd-stable@FreeBSD.ORG Tue Jul 15 15:56:22 2008 Return-Path: Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 116E0106566B; Tue, 15 Jul 2008 15:56:22 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (unknown [IPv6:2a01:170:102f::2]) by mx1.freebsd.org (Postfix) with ESMTP id 5E8F28FC18; Tue, 15 Jul 2008 15:56:21 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (localhost [127.0.0.1]) by lurza.secnetix.de (8.14.1/8.14.1) with ESMTP id m6FFuGeK045658; Tue, 15 Jul 2008 17:56:16 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.14.1/8.14.1/Submit) id m6FFuGan045657; Tue, 15 Jul 2008 17:56:16 +0200 (CEST) (envelope-from olli) Date: Tue, 15 Jul 2008 17:56:16 +0200 (CEST) Message-Id: <200807151556.m6FFuGan045657@lurza.secnetix.de> From: Oliver Fromme To: freebsd-stable@FreeBSD.ORG, petefrench@ticketswitch.com, koitsu@FreeBSD.ORG, sven@dmv.com In-Reply-To: X-Newsgroups: list.freebsd-stable User-Agent: tin/1.8.3-20070201 ("Scotasay") (UNIX) (FreeBSD/6.2-STABLE-20070808 (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.2 (lurza.secnetix.de [127.0.0.1]); Tue, 15 Jul 2008 17:56:18 +0200 (CEST) Cc: Subject: Re: Multi-machine mirroring choices X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-stable@FreeBSD.ORG, petefrench@ticketswitch.com, koitsu@FreeBSD.ORG, sven@dmv.com List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Jul 2008 15:56:22 -0000 Pete French wrote: > I am not the roiginal poster, but I am doing something very similar and > can answer that question for you. Some people get paranoid about the > whole "single point of failure" thing. I originally suggestted that we buy > a filer and have identical servers so if one breaks we connect the other > to the filer, but the response I got was "what if the filer breaks?". You install a filer cluster with two nodes. Then there is no single point of failure. I've done exactly that at customers of my company, i.e. set up NetApp filer clusters. Any disk can fail, any shelf can fail, any filer head can fail. A complete filer can fail. A switch can fail. The system will keep running and doing its job. And yes, we've tested all of that. Whether filers solve your problems is a different thing. I just pointed out the answer to the question "what if the filer breaks?". I'm not a NetApp salesman. ;-) Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "To this day, many C programmers believe that 'strong typing' just means pounding extra hard on the keyboard." -- Peter van der Linden