area <str> cannot be extended to <num> page(s)

  Explanation:  The extension of the specified  storage  area  was
  not  possible.   This condition is possible if the specified new
  size is less than the current  storage  area  allocation.   This
  condition can also occur when attempting to change the size of a
  WORM device.

  User Action:  Specify a new page count that is larger  than  the
  current area allocation.