Dynamically change the total amount of common service area
(CSA) storage that VTAM® is
allowed to use for the IO buffer pool:
.-,--BUFFER--=--IOBUF----.
>>-MODIFY-- --procname--,--BFRUSE--,--+------------------------+--,--XPANLIM--=--value-><
'-,--BUFFER--=--+-IO00-+-'
'-IO---'