Rejecting connections
To reject connections when the allowed number are exceeded, use the MODIFY PARM command in the IBM Data Virtualization Manager for z/OS Initialization EXEC, AVZSIN00, to set the CONCURRENTMX parameter:
"MODIFY PARM NAME(CONCURRENTMX) VALUE(xxxx)"
where xxxx is the maximum number
of concurrent DB2 users. This value is a number 0 - 2000. When this
value is reached, the Data Virtualization Manager server rejects further connections and returns an error message to the
client.