JCL parameters enable you to configure a region. You use JCL parameters to set information such as the names of your INIT and READY procedures, and the types of security exit to use in your region.
This information is supplied by the PPREF statements in the RUNSYSIN member.
You can also pass this information in the START command using the JCL PARM field. If you specify multiple parameters, separate each with a comma.
Note: For more information, see the Reference Guide.
You can display the current settings of all the JCL parameters with the SHOW PARMS command from OCS or Command Entry. To change any of these parameters, specify their new values in the RUNSYSIN member and then restart the region.
For more information about JCL parameters, see the Reference Guide.