RENTPGM
The RENTPGM system initialization parameter specifies whether you want CICS® to allocate the read-only DSAs, RDSA and ERDSA, from read-only key-0 protected storage.
- RENTPGM={PROTECT|NOPROTECT}
- The permitted values are PROTECT (the default), or NOPROTECT:
- PROTECT
- CICS obtains the storage for the read-only DSAs from key-0 protected storage.
- NOPROTECT
- CICS obtains the storage from CICS-key storage, effectively creating two more CICS DSAs (CDSA and ECDSA). This allows programs eligible for the read-only DSAs to be modified by programs that execute in CICS key.
In production CICS regions, RENTPGM=PROTECT provides the correct level of protection for modules in the RDSA and ERDSA. Specifying RENTPGM=NOPROTECT is only appropriate for development regions.