To stop and restart the queue manager, you need to enter DCL
commands.
Stopping
the Queue Manager To shut down the queue manager on a standalone node or an
OpenVMS Cluster node, enter the following command:
$ STOP/QUEUE/MANAGER/CLUSTER
The queue manager performs the following tasks:
Aborts all current jobs that cannot
be restarted and requeues all current restartable jobs
Stops all execution queues
Disables autostart on all nodes
Closes all queue database files associated with
that queue manager
Once you enter STOP/QUEUE/MANAGER/CLUSTER, the queue manager
process remains stopped; requests to that queue manager are denied
until you restart the queue manager by entering START/QUEUE/MANAGER.
(Note that the queue system remains running as long as one or more
queue managers are running.)
OpenVMS Cluster transitions do not change the state of the
queue manager. Newly available nodes do not attempt to start the
queue manager (unless you enter START/QUEUE/MANAGER).
Use the /CLUSTER qualifier to stop a clusterwide queue manager.
If you enter the obsolete command STOP/QUEUE/MANAGER (without the
/CLUSTER qualifier), the command performs the same function as STOP/QUEUES/ON_NODE. (Use STOP/QUEUES/ON_NODE
to stop all queues on a single node without stopping the queue manager.)
Restarting the Queue Manager The queue manager
restarts automatically whenever you reboot the system. However,
you might need to enter START/QUEUE/MANAGER for one of the following
reasons:
If
STOP/QUEUE/MANAGER/CLUSTER has been executed, enter START/QUEUE/MANAGER
to restart the queue manager.
In an OpenVMS Cluster environment, enter START/QUEUE/MANAGER
with the /ON qualifier to modify the list of preferred nodes on
which the queue manager can run. For more information, see
Customizing Queue Manager Failover.
In an OpenVMS Cluster environment, enter START/QUEUE/MANAGER
to ensure that the queue manager process executes on the most preferred,
available node. If
it does not, the queue manager will be moved to the most preferred,
available node without interruption of service. If you are using
the default node list (*), the queue manager will not be moved.
To restart the queue manager, use a command in the following
format:START/QUEUE/MANAGER[/ON=(node,...)] [dirspec]
Specify the /ON=(node,... ) qualifier and dirspec parameter
only if you want to change the value you are currently using for
the qualifier or parameter. The command you enter to start the queue
manager is stored in the queue database, with any qualifier or parameter
you specify. If you do not specify a qualifier or parameter, the
queue manager is started using the node list and location (if any)
stored in the queue database.
HP OpenVMS System Manager's Manual, Volume 1:... 
Managing the Queue Manager and Queue Database
