In addition to providing automatic service failover, a cluster enables you to cleanly stop a service on one member and restart it on another member. This service relocation functionality allows you to perform maintenance on a cluster member while maintaining application and data availability.
To relocate a service by using the Cluster Status Tool, drag the service icon from the Services tab onto the member icon in the Members tab. The Red Hat Cluster Manager stops the service on the member on which it was running and restarts it on the new member.