GLPDBM023E Failed to updated the DB2 instance width space to 64 bits.


      Explanation 
      The DB2 command db2iupdt failed.
       

      User response 
      Detailed information about the error can be found in the idsdbmigr.log file. 
      Correct the error and run the command again. 
      If the problem persists, contact IBM Software Support.