After the BCPii address space has ended, it can be restarted. A procedure supplied by IBM in SYS1.PROCLIB allows the BCPii address space to be restarted. Issue the S HWISTART command to restart the HWIBCPii address space. When message HWI001I appears, BCPii is now active and all BCPii requests may resume. However, all prior connections are no longer valid, and applications will need to re-establish these connections in order to resume their current BCPii activity. See z/OS MVS Initialization and Tuning Reference for more information about the START HWISTART command.

BCPii issues an ENF 68 broadcast when the address space has completely initialized to notify interested ENF listeners that BCPii services are now available. See z/OS MVS Programming: Authorized Assembler Services Reference EDT-IXG for more information regarding this ENF signal.