Persistence of the prefix

The FAILDISP keyword on the CPF macro defines what the system will do on behalf of the prefix owner when the subsystem on which the command will be processed terminates:
  • If you specify FAILDISP=RETAIN, the system will keep the prefix in the CPF table at all times, even if the subsystem owning the prefix terminates. In this case, you can decide what to do with the command prefix. You have three options:
    • Perform no action
    • Delete the prefix from the CPF table (REQUEST=DELETE)
    • Transfer ownership of the prefix to a system or subsystem in the sysplex using the REDEFINE keyword.

    If you do nothing, subsequent use of the command prefix will cause an error message. If you redefine the owner of the command prefix, you must update the CPF table to reflect the new owner.

  • If you specify FAILDISP=PURGE, the system will delete the command prefix from the CPF table.
  • If you specify FAILDISP=SYSPURGE, you will need to delete the command prefix from the table when either the subsystem owning the command prefix goes through end-of-memory (EOM) termination, or you remove from the sysplex the system to which CPF directs commands.
Parent topic: Routing commands in a sysplex (CPF macro)