Hi, On Wed, Sep 03, 2008 at 11:09:29PM +0000, Todd, Conor wrote: > If a server is off, it's not part of the cluster, right? In > this case, why would a tool for fencing nodes worry about a > node which is offline? Even if you argue that the same tool > which removed power from the node should be able to re-apply > power, why would such a tool do this when the node which was > powered-down was killed because it was acting erratically?
Your reasoning is fine, but our software is not perfect. The cluster master (i.e. CRM) could ask for a node to be fenced even if it is down. The reason: if it can't talk to a node, it doesn't know what the node's doing, and there's only one way to make sure that it's not doing anything (see also startup-fencing). It may also happen while the cluster is up. Not optimal, but unavoidable. Hence, a stonith module must be able to handle this. > Just wondering, before I ask any people at HP about this ;) Many thanks! Dejan > - Conor > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
