/FILE_LIST=(min_extents)
       /FILE_LIST=(VOL_MAP_WINDOW + 1) (default)

          The /FILE_LIST qualifier is used when showing the
          fragmentation state of a volume. It lists all files
          on the volume that have min_extents or more extents
          (fragments). By default, the number of file window
          mapping pointers set for the volume (INITIALIZE
          {volume}/WINDOW=n) plus one is used. This value lists
          all files that require at least one window turn to
          completely map.