From owner-freebsd-hackers Thu Sep 26 10:59:28 2002 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 9E5FB37B401 for ; Thu, 26 Sep 2002 10:59:27 -0700 (PDT) Received: from canning.wemm.org (canning.wemm.org [192.203.228.65]) by mx1.FreeBSD.org (Postfix) with ESMTP id 069DA43E65 for ; Thu, 26 Sep 2002 10:59:27 -0700 (PDT) (envelope-from peter@wemm.org) Received: from wemm.org (localhost [127.0.0.1]) by canning.wemm.org (Postfix) with ESMTP id E99592A7D6; Thu, 26 Sep 2002 10:59:21 -0700 (PDT) (envelope-from peter@wemm.org) X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: Attila Nagy Cc: hackers@freebsd.org Subject: Re: Disk space over 1 TB In-Reply-To: Date: Thu, 26 Sep 2002 10:59:21 -0700 From: Peter Wemm Message-Id: <20020926175921.E99592A7D6@canning.wemm.org> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Attila Nagy wrote: > Hello, > > Just a quick question: with the recent (past 1-2 months) commits made to > CURRENT, is it possible to use more than 1 TB of disk space? (this would > be a hardware RAID array, accessed via SCSI as a single ID, so no ccd, > vinum or other magic) The i386 port uses the generic disklabel code, which has 32 bit logical block addressing, which means that the partitions themselves are limited to 1TB or so. The GEOM work-in-progress is 64 bit clean internally and has at least one 64 bit clean partition method (EFI, from ia64) but that wouldn't be usable on boot disks without a fair bit of bootblock work and the userland tools to produce it are very raw at this stage. But one could theoretically use a 64 bit EFI layout on a large external raid and boot from a smaller disk. Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message