device-name[:]

    Specifies the name of a shadow set (DSAn:) or shadow set member
    (ddcu:), depending on the command qualifiers (see parameter
    formats specified in some qualifier descriptions).

    For most qualifiers that take a shadow set (DSAn:) as a parameter
    the /ALL qualifier can be used in place of the shadow set name to
    indicate that the requested action applies to all shadow sets on
    the system. (Exceptions are noted in the description of /ALL.)