RCFTCB= parameter for procedures

Use the RCFTCB= parameter in procedure to specify a number between 1 and 20 indicating how many RCF TCBs are defined in your system.

If you specify a null value or an invalid value, IMS uses the default of 1 RCF TCB. Increasing the number of RCF TCBs allows you to customize your system to achieve maximum parallelism and improved performance during RACF® sign-on and sign-off calls.