XXRSTAT enables you to decide whether to terminate CICS® when either of the following occurs:
XXRSTAT gives you the choice of allowing the system which has suffered the takeover to continue or to terminate.
To avoid potential integrity exposures, CICS default action after a predatory takeover is to terminate without a dump. If you want CICS to terminate with a dump, your exit program should return UERCABDU. CICS terminates with the abend code specified by your exit program.
If you want CICS to continue after a predatory takeover, your exit program must return UERCCOIG. Message DFHZC0101 is issued and CICS continues processing without VTAM support. The predatory application assumes control of all VTAM sessions.
For more information about this exit and the circumstances in which you can use it, refer to the CICS/ESA 3.3 CICS XRF Guide.