Network Deployment (Distributed operating systems), v8.0 > Establishing high availability > Establishing high availability for Service integration > High availability and workload sharing > Administer high availability for service integration
Manage a messaging engine in a cluster
During run time, you can stop or start a messaging engine in a WAS cluster, independently of the server in which it is running.
You might want to stop and restart a messaging engine in this way if, for example, to take a backup copy.
A stop or start action of a messaging engine applies to the server on which it is performed and is a runtime alteration of the state of the messaging engine. It does not alter the configured "Initial state" of the messaging engine.
If a failover occurs, the fact that we have stopped the messaging engine does not affect the behavior of the newly-activated instance; the messaging engine instance behaves in accordance with the configuration settings of the server in which it is activated.
Start a messaging engine
Stop a messaging engine