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.