Like the server, the initialization/termination program can have its own recovery routine. If the initialization/termination program fails and does not recover, MVSSERV traps the error and prevents all the servers in the subtask from processing any more requests.

If the initialization/termination program provides recovery, it must use the ESTAE 0 option to delete its recovery environment before returning control to MVSSERV after initialization and after termination.

For more information about using the ESTAE macro and recovery routines, refer to z/OS MVS Programming: Authorized Assembler Services Reference EDT-IXG.