Changing or displaying the number of allowed WTO and WTOR message buffers

Use the CONTROL M,MLIM command to change or display the number of allowed WTO (write-to-operator) or WTOR (write-to-operator-with-reply) message buffers. You can enter the command from consoles with master authority.

The MLIM and RLIM parameters on the INIT statement in the CONSOLxx parmlib member control the number of WTO and WTOR buffers. If the MLIM or RLIM parameters are not coded, the number of WTO buffers is 1500, and the number of WTOR buffers is 10.

The syntax for the command is:

 
K M[,REF|[,MLIM=nnnn][,RLIM=mmmm]]

The parameters are:

M

Indicates message processing by the message retention facility.

MLIM=nnnn

The maximum number of WTO message buffers to be allowed in the system, where nnnn can be a decimal number from 20 to 9999. The WTO buffers hold the WTO messages that the system has not yet displayed at the eligible MCS, HMCS, and SMCS consoles in the sysplex.

RLIM=mmmm

The maximum number of outstanding WTOR messages that the system or sysplex can hold in buffers, where mmmm can be a decimal number from 5 to 9999. Each WTOR buffer holds a WTOR message that the system or sysplex has displayed and has not received a response to. The maximum upper limit is set by the RMAX keyword on the DEFAULT statement in CONSOLExx.

REF

Displays the current values of all the operands on the K M command.

Example:

K M,MLIM=9999,RLIM=9999