JMS Server: Targets
Use this page to select the server instance, cluster, or migratable target on which you want to deploy this JMS server. Migratable targets define a set of WebLogic Server instances in a cluster that can potentially host a pinned messaging service, such as a JMS server. When a target server or migratable target boots, the JMS server boots as well. If no target server instance or migratable target is specified, the JMS server will not boot.
A recommended best practice is to target the JMS server to a cluster or migratable target, so that a member server will not be a single point of failure. A JMS server can also be automatically migrated from an unhealthy server instance to a healthy server instance, with the help of the server health monitoring services.