This the default setting. To make sure the monitor switch off run the following to check:
db2 get dbm monitor switches
$ db2 get dbm monitor switches
DBM System Monitor Information Collected
Switch list for db partition number 0 Buffer Pool Activity Information (BUFFERPOOL) = OFF Lock Information (LOCK) = ON 02/07/2012 21:37:58.374279 Sorting Information (SORT) = OFF SQL Statement Information (STATEMENT) = OFF Table Activity Information (TABLE) = OFF Take Timestamp Information (TIMESTAMP) = ON 02/07/2012 04:37:33.194722 Unit of Work Information (UOW) = OFF