From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Tue, 07 Nov 2006 00:18:56 -0800 (PST) Received: from larry.melbourne.sgi.com (larry.melbourne.sgi.com [134.14.52.130]) by oss.sgi.com (8.12.10/8.12.10/SuSE Linux 0.7) with SMTP id kA78IjaG012195 for ; Tue, 7 Nov 2006 00:18:47 -0800 Date: Tue, 7 Nov 2006 19:17:48 +1100 From: David Chinner Subject: Re: mount failed after xfs_growfs beyond 16 TB Message-ID: <20061107081748.GA8394166@melbourne.sgi.com> References: <20061102172608.GA27769@pc51072.physik.uni-regensburg.de> <454A3B28.7010405@sandeen.net> <20061103093203.GA18010@pc51072.physik.uni-regensburg.de> <20061103123418.GP8394166@melbourne.sgi.com> <20061103154448.GA26647@pc51072.physik.uni-regensburg.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20061103154448.GA26647@pc51072.physik.uni-regensburg.de> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: Christian Guggenberger Cc: David Chinner , Eric Sandeen , xfs@oss.sgi.com On Fri, Nov 03, 2006 at 04:44:48PM +0100, Christian Guggenberger wrote: > > The superblock: > > > > blocksize = 4096 > > dblocks = 18446744070056148512 > > ... > > agblocks = 84976608 > > agcount = 570 > > > > An AG is ~43.5GB, so 570 AGs is 24.8TB. It's to big, and > > we will only shrink by whole AGs. Hence we have to correct > > agcount and dblocks. > > isn't the AG size 'agblocks * blocksize' == ~324 GB here ? Yes, you are right - I was thinking 512 byte blocks which then gave the right size that you grew to. Otherwise 570*324GB gives 200TB, which is somewhat larger than you apparently tried to grow to... Sorry for the misdirection, but I'm glad to see that you got it fixed. Cheers, Dave. -- Dave Chinner Principal Engineer SGI Australian Software Group