From owner-freebsd-hackers@FreeBSD.ORG Fri Mar 11 15:40:13 2005 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AA37416A4CE; Fri, 11 Mar 2005 15:40:13 +0000 (GMT) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4ACC743D58; Fri, 11 Mar 2005 15:40:13 +0000 (GMT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.13.1/8.13.1) id j2BFdse9025970; Fri, 11 Mar 2005 09:39:54 -0600 (CST) (envelope-from dan) Date: Fri, 11 Mar 2005 09:39:54 -0600 From: Dan Nelson To: Florent Thoumie Message-ID: <20050311153954.GC92140@dan.emsphone.com> References: <4231B19D.8060406@centtech.com> <4231B7D5.3070306@xbsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4231B7D5.3070306@xbsd.org> X-OS: FreeBSD 5.4-PRERELEASE X-message-flag: Outlook Error User-Agent: Mutt/1.5.8i cc: freebsd-fs@freebsd.org cc: Eric Anderson cc: freebsd-hackers@freebsd.org Subject: Re: Global / Cluster / Shared filesystem for FreeBSD? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Mar 2005 15:40:13 -0000 In the last episode (Mar 11), Florent Thoumie said: > Adam Maloney wrote: > >On Fri, 11 Mar 2005, Eric Anderson wrote: > >>Speaking of filesytems :), I have a real need for a global filesystem > >>(or > > > >"me too" > > I don't know if DRBD [1] is a good implementation (Linux only), > but it works flawlessly, replication is fast (i got ~35MB/s) > and it's quite simple to get it working. > > ENBD [2] isn't based on the same concept, it "exports" block > devices through network via userland application, though it > needs a kernel module for client side. > > I'd like something like DRBD exists for FreeBSD but I'm not aware of > such an implementation. You want geom_gate. See the ggatec, ggated, and ggatel manpages. Note that none of the packages mentioned so far will give you a cluster filesystem; they are just a cheaper way of sharing block devices than a Fibre Channel SAN. -- Dan Nelson dnelson@allantgroup.com