From owner-freebsd-current@FreeBSD.ORG Sat Jan 31 05:04:06 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C7A1A16A4CE for ; Sat, 31 Jan 2004 05:04:06 -0800 (PST) Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7ABA743D2D for ; Sat, 31 Jan 2004 05:04:04 -0800 (PST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de (cicely5.cicely.de [IPv6:3ffe:400:8d0:301:200:92ff:fe9b:20e7]) (authenticated bits=0) i0VD3uN1011836 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK); Sat, 31 Jan 2004 14:03:58 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [IPv6:3ffe:400:8d0:301::12]) by cicely5.cicely.de (8.12.10/8.12.10) with ESMTP id i0VD3hFq093055 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 31 Jan 2004 14:03:44 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.12.10/8.12.10) with ESMTP id i0VD3gVQ027049; Sat, 31 Jan 2004 14:03:43 +0100 (CET) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.12.10/8.12.10/Submit) id i0VD3eJR027048; Sat, 31 Jan 2004 14:03:40 +0100 (CET) (envelope-from ticso) Date: Sat, 31 Jan 2004 14:03:38 +0100 From: Bernd Walter To: Oliver Brandmueller Message-ID: <20040131130337.GH774@cicely12.cicely.de> References: <20040130115025.GB96881@e-Gitt.NET> <200401310143.51186.freebsd-current@webteckies.org> <20040131114548.GA2632@e-Gitt.NET> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040131114548.GA2632@e-Gitt.NET> X-Operating-System: FreeBSD cicely12.cicely.de 5.2-CURRENT alpha User-Agent: Mutt/1.5.4i X-Spam-Status: No, hits=-4.9 required=3.0 tests=BAYES_00 autolearn=ham version=2.61 X-Spam-Report: * -4.9 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] X-Spam-Checker-Version: SpamAssassin 2.61 (1.212.2.1-2003-12-09-exp) on cicely5.cicely.de cc: current@freebsd.org Subject: Re: max blockdevice/filesystem size? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: ticso@cicely.de List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 31 Jan 2004 13:04:06 -0000 On Sat, Jan 31, 2004 at 12:45:48PM +0100, Oliver Brandmueller wrote: > Hi. > > On Sat, Jan 31, 2004 at 01:43:50AM +0100, Melvyn Sopacua wrote: > > > Since the information in the FAQ seems rather outdated, can someone tell > > > me, what the maximum size of a UFS2/ffs filesystem is with FreeBSD 5.2? > > > I'm looking for practical values. Something like: OK, we hit the max > > > size of a SCSI device, so we use some more of them and vinum. How much > > > TB would work in a single FS? > > > > See this thread for detailed information: > > http://lists.freebsd.org/mailman/htdig/freebsd-current/2004-January/thread.html#19314 > > Well, I've seen that read earlier, but well it talks a lot about the > limits of UFS1 and FBSD 4 - which are by far too low. Plans here were > something about 10 TB as a first step. Due to the nature of data and how > they are accessed it's not really simple to split them up into different > filesystems, as it's not easy to predict which parts grow most. > > > Well, would a 10 TB fs work out of the Box with 5.2? One point for a 10T UFS2 filesystem is a limit of 2G inodes. Someone mentioned a problem in another thread with more inodes. Another point is the fsck memory footprint when checking such a filesystem - that should very much depend on your newfs args and number of files. Otherwise it should just work. -- B.Walter BWCT http://www.bwct.de ticso@bwct.de info@bwct.de