Re: mount failed after xfs_growfs beyond 16 TB

David Chinner
2006-11-07T08:18:56Z

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