From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id qA96jot8081772 for ; Fri, 9 Nov 2012 00:45:50 -0600 Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id stuMm8M06BSh8yfF (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 08 Nov 2012 22:47:48 -0800 (PST) Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by aserp1040.oracle.com (Sentrion-MTA-4.2.2/Sentrion-MTA-4.2.2) with ESMTP id qA96lki3010637 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 9 Nov 2012 06:47:47 GMT Received: from acsmt356.oracle.com (acsmt356.oracle.com [141.146.40.156]) by ucsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id qA96lk83006112 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 9 Nov 2012 06:47:46 GMT Received: from abhmt114.oracle.com (abhmt114.oracle.com [141.146.116.66]) by acsmt356.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id qA96ljHW027448 for ; Fri, 9 Nov 2012 00:47:45 -0600 Message-ID: <509CA70D.6000702@oracle.com> Date: Fri, 09 Nov 2012 14:47:41 +0800 From: Jeff Liu MIME-Version: 1.0 Subject: XFS AG disk layout described on official doc is wrong List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Hello, I observed that there is an issue on our official DOC for AG disk layout, which can be found at: http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Allocation_Groups.html It shows that the IBT block is followed by the block where AGFL sector resides. However, it should be followed by the CNT block according to my debug, like below: ------------------------------- superblock AG free block info AG inode B+tree info AG internal free list ------------------------------- Root of free space B+tree B+tree key is block number ------------------------------- Root of free space B+tree B+tree key is block count -------------------------------- Root of inodes B+tree -------------------------------- Maybe the DOC is old, or am I missing anything? If not, can we correct it? Thanks, -Jeff _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs