[Linux-cluster] GFS and CLVM-snapshot

Daniel Phillips phillips at redhat.com
Mon May 9 08:00:18 UTC 2005


On Sunday 08 May 2005 22:26, David Teigland wrote:
> On Mon, May 09, 2005 at 05:04:37AM +0900, Kenji Wakamiya wrote:
> > Hello,
> >
> > I have some basic questions.
> > I'm using GFS with the following configuration.
> >
> >   node1  node2  node3 (FC3)
> >    GFS    GFS    GFS
> >    LV     LV     LV   <-- CLVM
> >   GNBD   GNBD   GNBD  <-- gnbd_import -n
> >
> >    +------+------+
> >
> >          GNBD  <-- gnbd_serv -n / gnbd_export -c
> >          node0 (file server: FC3)
> >
> > Only for snapshot and backup, CLVM has been introduced here.
> > Is a setup such as this correct?
> > If so (or not :), why "sometimes" the following error occor?
> > Don't I need freeze/unfreeze GFS manually, like XFS?
>
> CLVM snapshots do not work with GFS, sorry.  Maybe sometime in the
> future. However, this should be possible:

I believe Dave actually meant to say, take a look here:

 http://sourceware.org/cluster/csnap/

It's a cluster snapshot.  This is ready to test if you are a developer, 
but not ready to use in a production system.

Regards,

Daniel




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