Parameter

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.)