Controlling the message processing facility (MPF)

The message processing facility (MPF) controls message processing. It controls the suppression and retention of messages, the installation exits that gain control when certain messages and commands are issued, and message presentation (that is, the color, intensity and highlighting of messages) at certain consoles. It also controls the foreign messages and DOMs that are seen by subsystems and whether verbose messages are to be produced.

The operator can:

See what MPF member or members are active with the DISPLAY command
Change the active MPF member or members with the SET command.

For MPF to suppress messages, hardcopy processing must be active. The suppressed messages do not appear on any console; they do appear on the hardcopy log, and any extended MCS consoles that are receiving the hardcopy message set.

Message presentation:

Message presentation refers to the way the system uses color, intensity, and highlighting (including blinking, reverse-video, and underscoring) to identify messages that require action. The presentation depends on the type of device you are using.

Using the SET command:

Enter the SET MPF command to change the MPFLSTxx member or members that the system is to use.

Example:

To specify MPFLST03 and MPFLST06 as the MPF members for the system to use, enter:

SET MPF=(03,06)

The effect of this command lasts only for the duration of the IPL.