A WebLogic cluster is normally created with the domain using the Configuration Wizard tool. The cluster can also be created and added to an existing domain by using the Administration Console. This recipe will cover adding a new cluster to the existing PROD_DOMAIN domain.

A WebLogic cluster was previously created using Configuration Wizard earlier in this book. The same cluster will be created this time, but with four Manager Server instances instead of two. So remove the original cluster before creating the new cluster.

The new cluster will be called PROD_Cluster with four WebLogic Server instances PROD_Server01, PROD_Server02, PROD_Server03, and PROD_Server04. Machine prod01 will host the instances PROD_Server01 and PROD_Server02 and machine prod02 will host the instances PROD_Server03 and PROD_Server04.

PROD_DOMAIN Topology:

PROD_DOMAIN
 |___ PROD_AdminServer
 |
 |___ PROD_Cluster
     |___ PROD_Server01
     |___ PROD_Server02
     |___ PROD_Server03
     |___...