Transaction processing (TP) monitor
Transaction processing (TP) monitors are used to improve performance in OLTP environments. Many users can share a smaller number of database connections in order to execute transactions.
TP monitors can also be used to coordinate multisite updates across heterogenous resources. For example, a TP monitor can coordinate a single transaction involving updates to a DB2 for OS/390 server and an update to a print queue.
When TP monitors are used to coordinate multisite updates, the transaction states are maintained by the TP monitor itself, not by the native DB2 transaction manager. Therefore, in this environment there is no need for a TM database.
Database configuration parameter: Transaction Processing Monitor Name (TM_MON_NAME)