[Linux-HA] Xen and Heartbeat

[Dejan Muhamedagic]

Hi,

On Sun, Nov 05, 2006 at 06:55:34PM -0000, Robert Hatch wrote:
> 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?

crm_resource -W? Don't know what it dumps on failover. Perhaps
nothing useful. The other option is to do 'cibadmin -Q' and lookup
the resource in the status section. 'crm_verify -L -V' should also
give a clue. Nothing really elegant, but you may be able to get by.

Cheers,

Dejan

> 
> Thanks for your help
> 
> Regards
> 
> Rob
> 
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