Capacity proplem when mount CephFS with Ubuntu 14.04

Capacity proplem when mount CephFS with Ubuntu 14.04

[Ta Ba Tuan]

[-- Attachment #1.1: Type: text/plain, Size: 655 bytes --]

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


Thanks to everyone.
--tuantaba


[-- Attachment #1.2: Type: text/html, Size: 1273 bytes --]

[-- Attachment #2: Type: text/plain, Size: 178 bytes --]

_______________________________________________
ceph-users mailing list
ceph-users-idqoXFIVOFJgJs9I8MT0rw@public.gmane.org
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

Re: Capacity proplem when mount CephFS with Ubuntu 14.04

[David McBride]

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