From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262691AbULPPbW (ORCPT ); Thu, 16 Dec 2004 10:31:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262694AbULPPbW (ORCPT ); Thu, 16 Dec 2004 10:31:22 -0500 Received: from mailr.eris.qinetiq.com ([128.98.1.9]:43924 "HELO mailr.qinetiq-tim.net") by vger.kernel.org with SMTP id S262691AbULPPbT convert rfc822-to-8bit (ORCPT ); Thu, 16 Dec 2004 10:31:19 -0500 From: Mark Watts Organization: QinetiQ To: linux-kernel@vger.kernel.org Subject: Re: 3TB disk hassles Date: Thu, 16 Dec 2004 15:37:02 +0000 User-Agent: KMail/1.6.1 Cc: Neil Conway References: <20041216145229.29167.qmail@web26502.mail.ukl.yahoo.com> In-Reply-To: <20041216145229.29167.qmail@web26502.mail.ukl.yahoo.com> MIME-Version: 1.0 Content-Disposition: inline Content-Type: Text/Plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Message-Id: <200412161537.02804.m.watts@eris.qinetiq.com> X-AntiVirus: checked by Vexira MailArmor (version: 2.0.1.16; VAE: 6.29.0.5; VDF: 6.29.0.19; host: mailr.qinetiq-tim.net) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > Howdy... > > After much banging of heads on walls, I am throwing in the towel and > asking the experts ;-) ... To cut a long story short: > > Is it possible to make a 3TB disk work properly in Linux? > > Our "disk" is 12x300GB in RAID5 (with 1 hot-spare) on a 3ware 9500-S12, > so it's actually 2.7TiB ish. It's also /dev/sda - i.e., the one and > only disk in the system. > > Problems are arising due to the 32-bit-ness of normal partition tables. > I can use parted to make a 2.7TB partition (sda4), and > /proc/partitions looks fine until a reboot, whereupon the top bits are > lost and the big partition looks like a 700GB partition instead of a > 2.7TB one; this is a bad thing ;-) > > I've had my hopes raised by GPT, but after more reading it appears this > doesn't work on vanilla x86 PCs. > > Tips gratefully received. > > Neil > > PS: not on-list; I'll be reading the real-time archivers, but CCs of > any replies would be appreciated. Are you sure your card supports creating a single volume in excess of 2TB? Some cards have such a limit, although you can create many 2TB volumes on the same card. Mark. - -- Mark Watts Senior Systems Engineer QinetiQ Trusted Information Management Trusted Solutions and Services group GPG Public Key ID: 455420ED -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBwaueBn4EFUVUIO0RAhtLAKCK6ZcujlH1LGQ4SMssXlhoiifRqACgykSR uXt8wfwTM2N6nxPBOFNaGtc= =F7JI -----END PGP SIGNATURE-----