Use the mqsireporttrace command to check what tracing options are currently active for your integration nodes.
Specify the component for which the check is required. The command responds with the current trace status for the component that you have specified.
mqsireporttrace brokerA -t
where -t specifies
service trace.F MQP1BRK,reporttrace t=yes
BIP8098I: Trace level: debug, mode: safe, size: 1024 KB
BIP8071I: Successful command completion