Generating DBCTL
You generate the appropriate IMS control blocks and resource definitions for a DBCTL subsystem by performing an IMS system definition.
About this task
IMS system definition is a two-stage process with an optional preprocessor. Stage 1 checks your input specifications (appropriate JCL and macro statements) and generates a series of MVS™ job steps for stage 2. Stage 2 builds IMS system libraries, execution procedures, and the DBCTL control program. The optional preprocessor is a convenient tool that checks for duplicate names and checks the length and format of the names used as input for stage 1.