Fast Path in a DBCTL environment

In a DBCTL environment, Fast Path provides improved performance and data availability to programs that can use data entry databases (DEDBs). A DBCTL environment supports only the Fast Path facilities that are related to DEDBs. You cannot run main storage database (MSDB) facilities.

BMPs or CCTL threads can schedule a PSB to access DEDBs. Parallel scheduling is supported; another copy of the PSB can execute in another BMP or CCTL thread. Fast Path application programs and utilities can be active concurrently with BMPs.

Because much of the DEDB maintenance (such as reorganization and recovery-related functions) can be performed online, your IMS DBCTL environment should allow for the scheduling of a Fast Path utility region.