Ocfs2 users - Nov 2007 - Backups & Snapshot Support

Are there any plans for a type of "snapshot" support, which could be
use
to make point in time consistent backups, similar to what lvm would 
allow you to do for a local volume? I'm really looking for a good way to 
back up my ocfs2 volume, but so far, all we've been able to use is rsync 
and custom scripts.

Are there any other options?

-- 

Michael S. Moody
Sr. Systems Engineer
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ocfs2 is not a copy-on-write fs and thus makes it hard to provide
snapshot at the fs level. However, we will look into providing this
via devmapper/lvm. Nothing near term though.

Currently, one could use the facility provided by backends. Like with
emc or netapp. As far as I remember, emc supports this. Unsure about
netapp as they had wanted us to provide freeze/thaw capability. We are
currently awaiting feedback from them.
http://oss.oracle.com/bugzilla/show_bug.cgi?id=722

Not related to ocfs2, but we have another ongoing fs project, "btrfs",
that has the snapshot capability built into the fs.
http://oss.oracle.com/projects/btrfs/

Michael Moody wrote:
> Are there any plans for a type of "snapshot" support, which could
be
> use to make point in time consistent backups, similar to what lvm 
> would allow you to do for a local volume? I'm really looking for a 
> good way to back up my ocfs2 volume, but so far, all we've been able 
> to use is rsync and custom scripts.
>
> Are there any other options?
>