The NUMBER OF CLUSTER NODES is clause and the NUMBER OF
    VAXCLUSTER NODES is clause have exactly the same effect. The
    option of using NUMBER OF CLUSTER NODES has been added to reflect
    the fact that Oracle Rdb can run on different hardware platforms (in
    addition to VAXclusters).

    Sets the upper limit on the maximum number of nodes in the
    cluster from which users can access the shared database. The
    default is 16 nodes. The range is 1 node to 96 nodes. The actual
    maximum limit is the current cluster limit.