Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765333AbYBMB0a (ORCPT ); Tue, 12 Feb 2008 20:26:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753776AbYBMB0N (ORCPT ); Tue, 12 Feb 2008 20:26:13 -0500 Received: from e5.ny.us.ibm.com ([32.97.182.145]:59787 "EHLO e5.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752847AbYBMB0L (ORCPT ); Tue, 12 Feb 2008 20:26:11 -0500 In-Reply-To: <20080212.152652.217936905.davem@davemloft.net> To: David Miller Cc: btrfs-devel@oss.oracle.com, chris.mason@oracle.com, jengelh@computergmbh.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org MIME-Version: 1.0 Subject: Re: BTRFS partition usage... X-Mailer: Lotus Notes Release 7.0 HF277 June 21, 2006 Message-ID: From: Bryan Henderson Date: Tue, 12 Feb 2008 17:25:32 -0800 X-MIMETrack: Serialize by Router on D01ML604/01/M/IBM(Release 8.0|August 02, 2007) at 02/12/2008 20:26:07, Serialize complete at 02/12/2008 20:26:07 Content-Type: text/plain; charset="US-ASCII" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 975 Lines: 22 > The Sun disk label only allows you to specify the start of a partition > in cylinders, so if you want to use a filesystem like XFS you have to > start the partition on cylinder 1 which can be many blocks into the > disk. That entire first cylinder is completely wasted. I don't believe a cylinder of wasted disk space is significant. I don't believe a cylinder of disk is worth adding the complexity of sharing a partition to a filesystem. That complexity translates into engineering time and mistakes. Your other arguments for making a hole in the filesystem, based on tradition, are more convincing. -- Bryan Henderson IBM Almaden Research Center San Jose CA Filesystems -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/