Before you begin
Make sure that the members of your cluster have the debug port properly set. If multiple servers on the same node have the same debug port set, the cluster could fail to start. See Java virtual machine settings for more information on how to change the debug port.Why and when to perform this task
You can start all members of a cluster at the same time by requesting that the state of a cluster change to running. That is, you can start all application servers in a server cluster at the same time.When you request that all members of a cluster start, the cluster state changes to websphere.cluster.partial.start and each server that is a member of that cluster launches, if it is not already running. After all members of the cluster are running, the cluster state becomes websphere.cluster.running.
Steps for this task
Results
Note to Windows users: If you start and stop application servers that are part of a cluster using the Windows Services facility, the cluster state does not always update correctly. For example, if a cluster is running and you stop a cluster member through the Services GUI, the cluster state remains as Started even though the server is no longer running.