Database must be off-line to assign a page size of <num> to area
  <str>.

  Explanation:  The page size specified for this  area  is  larger
  than  the buffer size supported by the database.  To accommodate
  the larger page size, the buffer size of the database would have
  to  grow.   The  buffer  size  cannot  be  changed for an online
  database.

  User Action:  Either settle for a smaller page size  or  perform
  the operation off line.