Performance of Environments Using DB2 Connect Enterprise Edition

DB2 Connect Enterprise Edition V9.1 for Linux on zSeries (DB2 Connect) connects LAN-based systems and their applications to the company's mainframe host DB2 databases. Additionally, DB2 Connect can be used in a three tier environment and can act as a gateway concentrating large numbers of SQL connections from various clients to a fewer, well-defined number of connections to the DB2 database on z/OS. The focus of this paper is on the connection concentrator functions of DB2 Connect. This feature enables a predictable, controlled load on the database on z/OS from a DB2 Connect server and may reduce mainframe resource usage as fewer DB2 threads may be defined.