The relationship between RLIM and RMAX values in your sysplex can help you plan for WTOR messages and operator replies. In a sysplex, the first system to join sets the RMAX value, which has sysplex scope. If you do not specify RLIM, the first system to join the sysplex sets RLIM to the value of RMAX.
In a sysplex running JES2, when XCFLOCAL is set, the sysplex runs without a couple data set and systems cannot join or use the services of the sysplex. In both these situations, the RLIM default of 10 is used, if no RLIM value is specified, regardless of what is set for RMAX.