[Ocfs2-users] nested ocfs2 filesystems

Sunil Mushran Sunil.Mushran at oracle.com
Mon Jul 9 15:37:40 PDT 2007


This should be totally transparent the the filesystem.

Use "ls -i" to debug. That will dump the inode number.
As the inode number is tied to the block number on the device,
see if they match.

You can also use debugfs.ocfs2 to traverse thru the directories
on the block devices directly.

Andrew D. Ball wrote:
> Should I expect any odd behavior mounting one ocfs2 filesystem within
> another when the nodes with the child filesystem mounted are a subset of
> the nodes with the parent filesystem mounted?
>
> For example:
>
> (1) on all nodes in the ocfs2 cluster:
>   mount -t ocfs2 /dev/evms/ocsf2_fs1 /mnt/ocfs2_fs1
> (2) on some of those nodes:
>   mount -t ocfs2 /dev/evms/ocfs2_fs2 /mnt/ocfs2_fs1/mnt/ocfs2_fs2
>
> I think I'm seeing a file from the filesystem on /dev/evms/ocfs2_fs2
> on /mnt/ocfs2_fs1/some/other/dir/logfile.  The file on /mnt/ocfs2_fs1 is
> supposed to be a logfile, but appears to be an image of a block device,
> which should only be somewhere on the /dev/evms/ocfs2_fs2 filesystem.
> The /dev/evms/ocfs2_fs2 is not mounted on the machine where I see this.
>
> Thanks for your help!
> Andrew
>
>
>
>
>
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