Quote:
Originally Posted by
mk8570
In case of failover, I believe application will still be fine , as it will pick up boot ip of the failover node (local node) in that case.
The point of HACMP is that users can rely on a certain IP address delivering a certain service regardless of some single system being operative or not. Suppose the following situation: for the user a certain database is always available at IP 1.2.3.4, regardless of machineA being up (and answering under this address) or machineB being up (and answering under this address). Both machines will be aware of the state of the other and HACMP is a set of rules how the application, its data and it related IP addresses are transferred from one machine to the other in case of failure of one of these machines.
If your application picks up any IP address at random this process is not working any more and you might check if you really need HACMP in this case.
Shockneck is absolutely correct: you may want to get some general knowledge about the concepts and workings of HACMP (for instance by downloading and reading some Redbook) before you attempt to configure a cluster.
I hope this helps.
bakunin