VAXCLUSTER controls loading of the cluster code. Specify one of
    the following:
    Value  Description
    0      Never form or join a cluster.
    1      Base decision of whether to form (or join) a cluster or to
           operate standalone on the presence of cluster hardware.
    2      Always form or join a cluster.
    The default value is 1.
    VAXCLUSTER is an AUTOGEN parameter.