Setting up a CICS region

To set up a CICS region, create the data sets for the CICS region, edit the JCL to configure the services that the CICS region can use, and start the CICS region.

Subtopics

Defining data sets
CICS system data sets are used by a number of CICS processes including temporary storage, transient data, transaction dump and trace. Some data sets are optional, others are required for running CICS. If a data set needs pre-formatting, a job that you can use for this purpose is shown.
Specifying CICS system initialization parameters
You can use the CICS system initialization parameters to modify CICS system attributes when you start your CICS regions. Different methods are available to define the parameters to CICS. Each system initialization parameter is described, including the syntax and a detailed description.
Processing system initialization parameters
This section describes the CICS system initialization process.
Retrieving information about system initialization parameters used at system startup
You can use the CICSPlex SM API to discover information about CICS system initialization parameters and system initialization parameter overrides that were used at system startup. System initialization parameter retrieval is supported by the CICSPlex SM command-level interface, the CICS management client interface (CMCI), and the Web User Interface (WUI).
CICS startup
Depending on your system environment, you can start the CICS job from a procedure by using the START command, or you can submit the CICS startup job stream through the internal reader.
Preparing CICS for using debugging tools
Before application programmers can use certain debugging tools with CICS, you will need to perform some system definition tasks. This section describes those tasks.
Starting up CICS regions
This section describes how to start up CICS regions. It assumes that you have already carried out any customization of CICS, generated any additional support required, and defined all the necessary CICS system definitions.

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Last updated: Thursday, 27 June 2019