[Ocfs2-users] Question about eth communication for ocfs2

[Sunil Mushran]

On 02/08/2011 01:32 AM, Alain.Moulle wrote:
> OK but what I wonder now is :
> is OCFS2 really capable of fencing an adjacent node ?
> or is it only capable of "node self-fencing" ?
> I thought that ocfs2 was only capable of "node self-fencing" because
> there is no configuration of any fencing device (i.e. ipmi ,etc.) in the
> ocfs2 configuration, so a node can't fence another node as in a HA
> software (like Cluster Suite, Pacemaker, etc.)
>
> So only "node self-fencing" possibility , right ?
>
> So, in case of linkcom breakdown, you seem to tell me that
> only the slave node will self-fence , and we can't really know
> which one of both nodes will self-fence as we can't know which
> one is the slave when the linkcom breakdown happens , right ?

Note that while ocfs2 comes with a default cluster stack called o2cb
it can also be configured to work with pacemaker and cman.

The previous answers were all relating to o2cb. And o2cb does not
support configurable fencing agents.

For that you'll have to use pcmk/cman. sles11, opensuse, fedora,
debian, ubuntu ship ocfs2 with pcmk/cman.