1    /GROUP_NUMBER

       /GROUP_NUMBER=[n]

    Specifies the cluster group number that is recorded in
    SYS$SYSTEM:CLUSTER_AUTHORIZE.DAT. A group number uniquely
    identifies each local area cluster on a single Ethernet. This
    number must be in the range from 1 to 4095 or 61440 to 65535.

2    /PASSWORD

       /PASSWORD=password

    Specifies a password for cluster access. A password consists of
    1 to 31 characters, including alphanumeric characters, dollar
    signs, and underscores. A password provides a second level of
    validation to ensure the integrity of individual clusters on the
    same Ethernet that accidentally use identical group numbers. A
    password also prevents an intruder who discovers the group number
    from joining the cluster.