Multiple Command Receivers

If you have started multiple command receivers, you can use the INGRCRCV QUERY command to show the list of command receivers and the associated NetView tasks and PPI IDs. For example:

ING337I   PPI RECEIVER STATUS LIST
          STATUS    PPI       TASK      VOST      VOSTOWNER  OPF
          --------  --------  --------  --------  ---------  ---
          ACTIVE    INGRCRCV  DSI#0022  CMDRCVR   AUTWRK03   AOFCMDOPER
          ACTIVE    INGRCVR2  MYTASK                         EVTOPER

The display of this command shows the NetView task and PPI ID, the VOST owner and the OPF as specified in the command receiver start command.

The VOST is used to run the command receiver if it was started via the INGVSTRT command (you can check it in the APL's start command in the sample PDB). In this case, the VOST is the APL subsystem name and the VOST owner is the associated work operator AUTWRKnn.

The second line shows another command receiver that was started with PPI ID INGRCVR2 via command:

AOFEXCMD MYTASK INGRCRCV START PPI=INGRCVR2
OPF=EVTOPER

This second command receiver does not run in a VOST, but runs in the task MYTASK. The command will be scheduled to be executed by the single automated operator function EVTOPER.

VOST versus OST

The first command receiver runs in a VOST, and the second one runs in an OST.

The advantage of the VOST is that no separate OST is required. However, if more than one command receiver is running, it is not recommended to use the same VOST owner. Therefore, it might be useful to start the command receiver with the AOFEXCMD command in a separate task.