[Linux-HA] Xen and Heartbeat

[Robert Hatch]

Hi, I am in the process of building a xen HA cluster. I have a working
shared iscsi SAN setup which stores the domU's but in the controlled
handover scenario I want to live migrate the domU's between nodes.  I
have read that the standard way to do this is to pull the domU from the
closing node on to the replacement.  With only two nodes this works fine
as the domU is always located on the other node but when you have more
than 2 nodes and you have multiple failures, the script needs to know
the name of the failed node as you cannot guarantee that the resource
normally associated with a particular node is in fact running there.  Is
there any way of feeding forward the name or the ip address of the
machine that has failed into the resource scripts so I can initiate the
correct pull?

Thanks for your help

Regards

Rob