[Ocfs2-devel] [RFC] Integration with external clustering

[David Teigland <teigland@redhat.com>]

On Thu, Oct 20, 2005 at 08:03:41AM -0700, Joel Becker wrote:
> heavily involved in the cluster.  Mount.ocfs2 is a separate program, and
> in the O2CB world it handles starting the heartbeat for a particular
> device in the "local heartbeat" mode (by "local heartbeat", we mean our
> default mode of "must be heartbeating on the device that is the mounted
> filesystem").  So, there is never a kernel callout to ask the cluster
> manager to care.  We don't like kernel callouts :-)  It's all done in
> user from mount.ocfs2.  Having mount.ocfs2 know how to talk to CRM would
> be entirely analogous.

For some reason we've never used a mount.gfs so it didn't even cross my
mind -- it sounds like the obvious way to go.  That description I sent of
how gfs mount interacts with the cluster bits may be changing now...

Thanks,
Dave