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From: David McBride <dwm37-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>
To: Ta Ba Tuan <tuantb-QlevPasa8l681eZEIcUDRw@public.gmane.org>
Cc: ceph-devel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	ceph-users-Qp0mS5GaXlQ@public.gmane.org
Subject: Re: Capacity proplem when mount CephFS with Ubuntu 14.04
Date: Tue, 16 Jul 2013 11:35:37 +0100	[thread overview]
Message-ID: <51E521F9.5050606@cam.ac.uk> (raw)
In-Reply-To: <51E505D6.1030700-QlevPasa8l681eZEIcUDRw@public.gmane.org>

On 16/07/13 09:35, Ta Ba Tuan wrote:
> Hi everyone,
> 
> OSDs capacity sumary is 144TB, and *when I mount CephFS on Ubuntu 14.04
> then it only display **576GB*, (Currently, I'm using replicate 3 for
> data pools)
> (using: mount -t ceph Monitor_IP:/ /ceph -o name=admin,secret=xxxxxxxxxx")
> 
> I don't think capacity is too small?, please explain this help me!!!!!
> 
> *on Ubuntu 14.04*
> Filesystem                Size  Used Avail Use% Mounted on
> 192.168.32.90:/    576GB  20G  556GB  1%  /tmp/ceph_mount
> 
> But when mounting on Ubuntu 12.04:
> *on Ubuntu 12.04*
> Filesystem                Size  Used Avail Use% Mounted on
> 192.168.32.90:/    144T  800G  113.6T   1%  /tmp/ceph_mount

This is most likely:

 http://tracker.ceph.com/issues/3793

This is caused by using a more modern version of coreutils; that,
coupled with the numbers reported by Ceph for filesystem blocksizes in
older kernels, results in the above error.

To fix, either use a recent version of the fuse driver or upgrade your
kernel to a newer one that includes the commit "ceph: fix statvfs fr_size":

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92a49fb0f79f3300e6e50ddf56238e70678e4202

(Kernels 3.9-rc1 and later should include it.)

Cheers,
David
-- 
David McBride <dwm37-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>
Unix Specialist, University Computing Service

      parent reply	other threads:[~2013-07-16 10:35 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-16  8:35 Capacity proplem when mount CephFS with Ubuntu 14.04 Ta Ba Tuan
     [not found] ` <51E505D6.1030700-QlevPasa8l681eZEIcUDRw@public.gmane.org>
2013-07-16 10:35   ` David McBride [this message]

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