Dependent region failures

Two types of dependent region failures can occur: an application program failure or a region controller failure. In each case, if an LU 6.2 conversation established by the application program is running in the failing dependent region, APPC/MVS terminates the conversation with the DEALLOCATE abend.

• Application program failures, in which the application program abends but the region is still active.
• Region controller failures, in which the region fails. This kind of failure can occur, for example, when the program loops.