[Linux-cluster] Re: How do you verify/test fencing?
bkyoung at gmail.com
Wed May 7 18:14:05 UTC 2008
Unplug the heartbeat cable.
On Wed, May 7, 2008 at 6:19 AM, Chris Picton <lists at tangent.co.za> wrote:
> On Tue, 06 May 2008 17:35:04 -0400, Lon Hohberger wrote:
> > On Tue, 2008-05-06 at 14:37 -0600, Gary Romo wrote:
> >> Is there a command that you can run to test/veryify that fencing is
> >> working properly?
> >> Or that it is part of the fence if you will? I realize that the primary
> >> focus of the fence is to shut off the other server(s).
> >> However, when I have a cluster up, how can I determine that all of my
> >> nodes are properly fenced?
> > * For testing whether or not fencing works, stop the cluster software on
> > all the nodes and run 'fence_node <nodename>' (where nodename is a host
> > you're not working on).
> > * For testing whether or not a node will be fenced as a matter of
> > recovery, try 'cman_tool services'. If that node's ID isn't in the
> > "fence" section, it will not be fenced if it fails.
> These two step will not test that a node will be fenced automatically if
> it is malfunctioning.
> What can be done to a cluster node, to test that it will be automatically
> fenced if there is a problem.
> Linux-cluster mailing list
> Linux-cluster at redhat.com
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Linux-cluster