You can configure an external high availability framework, such as IBM® HACMP™, to manage a messaging engine as if it is a resource in the external high availability framework resource group.
To allow a messaging engine to be managed by an external high availability framework, you configure a "No operation" policy for the messaging engine. When you do this, HAManager activates or deactivates a messaging engine only when the external high availability framework instructs it to.
If you require high availability, you can use a WebSphere MQ SupportPac™ that enables a WebSphere MQ queue manager to connect with a WebSphere Application Server messaging engine in a highly available manner. If you do not use this SupportPac, you must use an external high availability framework to ensure that if a messaging engine fails over, the appropriate IP address and port for the new messaging engine location are used.
For further details, see the information about high availability of messaging engines that are connected to WebSphere MQ.