From owner-freebsd-current@FreeBSD.ORG Wed Feb 16 22:00:38 2005 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 03A2816A4CE for ; Wed, 16 Feb 2005 22:00:38 +0000 (GMT) Received: from mh1.centtech.com (moat3.centtech.com [207.200.51.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1555743D5A for ; Wed, 16 Feb 2005 22:00:37 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from [10.177.171.220] (neutrino.centtech.com [10.177.171.220]) by mh1.centtech.com (8.13.1/8.13.1) with ESMTP id j1GM0aXe096791; Wed, 16 Feb 2005 16:00:36 -0600 (CST) (envelope-from anderson@centtech.com) Message-ID: <4213C1FB.6030802@centtech.com> Date: Wed, 16 Feb 2005 15:58:19 -0600 From: Eric Anderson User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.5) Gecko/20050210 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Claus Guttesen References: <20050216215325.9201.qmail@web26805.mail.ukl.yahoo.com> In-Reply-To: <20050216215325.9201.qmail@web26805.mail.ukl.yahoo.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV version 0.82, clamav-milter version 0.82 on mh1.centtech.com X-Virus-Status: Clean cc: FreeBSD Current Subject: Re: newfs limits? 10TB filesystem max? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Feb 2005 22:00:38 -0000 Claus Guttesen wrote: >>I've just built an enormous 10TB filesystem. When >>trying to newfs the disk, it bombed with something >>like "cannot allocate memory" after something like >>23xxxxxxxxx sectors.. I noticed disklabel complains >>about disks with more than 2^32-1 sectors not being >>supported.. > > > Aren't you supposed to use gpt(8) to define partitions > larger than 2 TB? No idea - this is the first I've heard of gpt really.. >>Is newfs supposed to be able to work? I've used the >>-s option to newfs to limit my filesystem size to >>the max it would allow, which ends up being >>11350482546 1K blocks, which means I'm only losing a >>couple GB, which is no sweat right now for me, but >>if someone wanted a 20TB filesystem, they'd be >>hosed. > > > Then the question is whether newfs reads > gpt-partitioned disks? From newfs(8): > > Before running newfs the disk must be labeled using > bsdlabel(8). > > How did you create such a huge partition? Your > question is quite interesting, I'm at a > storage-solution which supports LUN's larger than 2.2 > TB. I used vinum to stripe 6 2TB partitions connected to 2 fiber channel disk arrays. Vinum automatically does the bsdlabel part. I was merely wanting to see what bsdlabel had to say about the vinum disk (if anything). Using newfs on it worked as long as I specified a smaller sector count. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology I have seen the future and it is just like the present, only longer. ------------------------------------------------------------------------