|Bookshelf Home | Contents | Index | PDF|
Siebel 7 introduced Siebel database connection pooling which decreases the necessary number of DB2 DBATs. The use of Siebel database connection pooling may allow Siebel zSeries customers to use the default DSMaxCursorSize=-1 and DSPreFetchSize=-1 with careful DB2 buffer pool tuning and utilizing DB2 storage contraction DSNZPARMs as documented in this guide.
Siebel Object Manager server components offer the ability to share and reuse database connections, a feature that is referred to as Siebel Database Connection Pooling and Multiplexing. This feature saves the overhead of creating new database connections for each user session and allows the number of concurrent user sessions to exceed the number of database connections.
When you enable Siebel Database Connection Pooling and Multiplexing, the Object Manager component maintains a pool of database connections. When a new connection is needed (a user session is started), the Object Manager looks for an unused connection in the pool. If no connections are available and the pool has less than the maximum number (
|Implementing Siebel eBusiness Applications on DB2 UDB for z/OS and OS/390|