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
Move a messaging engine from one server to another by using the HAManager
We can move a messaging engine from one server to another by changing the policy that is bound to the messaging engine HAGroup. This is the recommended way of moving the messaging engine. We must not attempt to directly activate or deactivate the members of the HAGroup that relates to the messaging engine. We must stop the messaging engine before changing the policy. After the messaging engine has moved, we have to restart it manually. You might want to move a messaging engine if you are aware of a problem that causes the server on which the messaging engine is currently running to fail. See Specify a preferred server for messaging requests.