You'll need Network Deployment to be able to create a cluster.
Ideally,
Install WAS ND binaries on machine1 and machine2.
On machine1, create profile of Deployment type. Also, on machine1 create profile of Application Server type.
On machine2, create profile of Application Server type.
Log into dep profile admin console, federate the AS nodes on machine1 and machine2 into the cell.
You would then be able to see, start, stop those nodes from the dep console.
Once this is done, create a cluster in the dply admin console and add your federated nodes to the cluster as cluster members.
If you plan on using different platforms(Windows, Linux, AIX,...) you will need a Coregroup for each platform. I think.
This gives you HA and failover at both jvm and hardware levels along with central administration.
IF you apply any fixpacks, you'll have to do that to each individual machine.
You would also want a web server defined in the dep console, otherwise http would be provided by each appserver's embedded http(EIHS).
This would be just one of many scenarios. You may go out to the InfoCenter and look at Clusters for a better explanation.
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Posted By: gmarshall7 at Aug 27 2009 3:51PM