By default, all nodes in an OpenVMS Cluster environment are
able to run the queue manager, in no specified order of preference.
The /ON qualifier of the START/QUEUE/MANAGER command lets you specify
a list of OpenVMS Cluster member nodes in the order that they should
claim the queue manager process. HP recommends that you
specify an asterisk (*) at the end of the node list to make sure
that at least one node is always available to run the queue manager.