If you specify CMDSYS or use CPF to route commands, consider the following:

• When the operator enters the command from the console, sysplex services can route the command to the system specified by CMDSYS or CPF.
  Note: Processing for the MVS™ ROUTE command is different; see Command flow and the ROUTE command in a sysplex.
• The system that issues the command and the system that receives the command can process the command as follows:
  1. Hardcopy log processing on both systems can record the command.
  2. The command processing exit or exits of both systems get control.
  3. Hardcopy log processing on both systems can record the command if exit processing modified the command.
  4. If any installation exit processed the command, no further command processing occurs.
  5. The subsystems on both systems receive the command.
  6. The command processor for the command on each subsystem can process the command. If the subsystem processes the command, no further command processing occurs.
  7. The MVS command processor on the system that receives the command processes it.
  8. If the command contains system symbols, the system that receives the command (not the system on which the command was entered) substitutes text for the system symbols.
     For example, suppose your installation defines the command prefix S02 to system SYS2 and you enter the following command on system SYS1:

      S02 START CICS,JOBNAME=CICS&SYSNAME.,...

     First, system SYS1 sends the command to system SYS2. Then SYS2 substitutes the text that it has defined to the &SYSNAME system symbol:

      START CICS,JOBNAME=CICSSYS2,...

  9. If a command that is specified in the COMMNDxx parmlib member contains system symbols, the system does not substitute text for the system symbols during parmlib processing. The system that receives the command substitutes text for the system symbols when it processes the command.

Unlike message installation exits, command installation exits receive control on both the system that issues the command and the system that is the target of the command.

As with messages, NetView® on any system can receive the routed command. To coordinate command activity for automated operations, you must consider the scope of the command flow in a sysplex.