The Data Communication Control (DCCTLpronounced "DC control") environment allows you to use IMS TM independently of IMS DB. DCCTL provides improved system performance in terms of throughput, system availability, and integrity. DCCTL can coexist with IMS TM application programs and installed terminals. The following scenarios involving DCCTL do not require modifications to your existing environment:
The following procedures might require modifications for a DCCTL environment:
Your existing system definition procedures support the generation of a DCCTL system. DCCTL executes with a collection of control blocks that identifies your data processing environment. These control blocks describe the system, data communication, and Transaction Manager components. Using a DCCTL environment system definition, you can generate a TM batch environment. TM batch support allows only DBB and DL/I regions. It does not provide DL/I database capabilities. Using TM batch, you can either take advantage of the IMS Batch Terminal Simulator or access DB2 UDB for z/OS systems. Related Reading:
|