Notes about console message backups

All lines of an out-of-line multiple-line status display that have not been presented occupy message buffers. Therefore, the operator should erase these displays when they are no longer needed to free the message buffers.
During system initialization, the system does not use the MLIM and RLIM parameter values in the CONSOLxx parmlib member until either the system log or a console becomes active or processing by the nucleus initialization program (NIP) completes. After NIP processing, consoles other than the initialization console become active and buffer space becomes important.
When activating an extended MCS console, specify the optional alert percentage and an event control block (ECB) address on the MCSOPER macro. Then, when the message data space reaches the specified percentage, the system will post the ECB.