[Pacemaker] virtual IP or real IP address

gilberto migliavacca gbmiglia at yahoo.it
Wed Oct 28 04:26:39 EDT 2009


I have a question. I've seen in the mailing list
a lot of example with the IPAddr/IPAddr2 resource agent

this resource agent manages the Virtual IP.

Could anybody explain me why I have to create a
virtual IP istead of using the real IP?

for instance

I have a cluster with 2 nodes and 1 tomcat on both
My purpose is just to start and stop (maybe configure)
these tomcat instances.

I've created a configuration with the IPsrcaddr resource
agent I think this should manage the real IP, isn't it?

Could anybody point me in the right direction?

thanks in advance


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