The RESTART command provides a way to recycle or recover a hung or stopped task. See z/OS Security Server RACF Command Language Reference for the syntax of the RESTART command.

The preferred way to recycle a connection is not to use the RESTART command. Instead, the operator should use the TARGET command to make the connection to the node dormant and then operative. This method fails if the task is hung waiting for outstanding work. Use the RESTART command to recycle a connection only after an unsuccessful attempt at using the TARGET command to make that connection dormant and then operative.

On restart, the partner node always marks the sender as dormant-remote. The node being restarted then attempts to handshake with the partner to restore the connection.