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XFS, NFS and inode64 on 2.6.27

To: xfs@xxxxxxxxxxx
Subject: XFS, NFS and inode64 on 2.6.27
From: Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx>
Date: Fri, 20 Nov 2009 11:52:43 +0100
Organization: it-management http://it-management.at
User-agent: KMail/1.12.2 (Linux/2.6.31.5-0.1-desktop; KDE/4.3.1; x86_64; ; )
Dear all,

after searching for a long time I guess I found that inode64 on XFS with 
kernel 2.6.27 (shipped with openSUSE 11.1) is incompatible with NFS. 
Sorry if this was already know, it wasn't for me and finding the problem 
was complicated.

This is my nfs4 root (fsid=0):

# ls -li
insgesamt 0
4666 drwxr-xr-x 2 root root 48 15. Nov 19:54 daten
4668 drwxr-xr-x 2 root root 48 15. Nov 19:54 download2
4667 drwxr-xr-x 2 root root 48 15. Nov 19:54 dvd-images
4661 drwxr-xr-x 2 root root 48 19. Nov 06:51 mailsrv-backup
4669 drwxr-xr-x 2 root root 48 15. Nov 19:54 q
4670 drwxr-xr-x 2 root root 48 15. Nov 19:54 z

Then I mount those subdirs (mount --bind ....) to fill it with the dirs 
I want to share:

# ls -li
insgesamt 20
        256 drwxr-xr-x 14 root root  4096 19. Nov 03:01 daten
 6454034730 drwxrwx---  3 zmi  users   61 26. Mär 2009  download2
    4070671 drwxr-xr-x  2 root root    76 13. Nov 12:17 dvd-images
 6500330752 drwxr-xr-x  5 root root  4096  8. Nov 04:31 mailsrv-backup
 8591091465 drwxr-xr-x 17 root root  4096 12. Nov 02:01 q
 2147483904 drwxrwx--- 31 zmi  bh    4096  7. Nov 09:58 z

The shares "daten" and "dvd-images" can be mounted from other servers. I 
simply went to the original dirs of this mount-bind, and created several 
new dirs:
mkdir 1 2 3 4 5 6 7 8 9
and one of them had an inode < 2G, so I moved the contents there and 
renamed the dirs, remounted the --bind mounts and now have this:

# ls -li
insgesamt 20
      256 drwxr-xr-x 14 root root 4096 19. Nov 07:22 daten
184637244 drwxr-xr-x  3 root root   61 19. Nov 07:30 download2
  4070671 drwxr-xr-x  2 root root   76 13. Nov 12:17 dvd-images
960533297 drwxr-xr-x  5 root root 4096 19. Nov 07:27 mailsrv-backup
184190222 drwxr-xr-x 16 root root 4096 19. Nov 07:41 q
184637237 drwxr-xr-x 30 root root 4096 19. Nov 07:42 z

And everything mounts fine now.

(I still have one server that can mount, but not write, to such a share, 
but that may be another problem)

Just to let others know that can be a problem.

mfg zmi
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