The Real Time Monitoring tool provides a convenient at-a-glance overview of performance statistics such as CPU and memory utilization, number of APs and clients on the network, and number of packets transmitted.
Like the Dashboard, you can drag and drop Widgets onto the Real Time Monitoring page to customize the information you want to see.
Select a time increment to monitor statistics by (5 minutes, 1 hour or 1 day) and click Start Monitoring to begin. Note that because the Real Time Monitoring process itself consumes a small amount of system resources, it should be used as a general overview tool rather than a precise measurement. Actual resources used (CPU and memory utilization) will be lower when Real Time Monitoring is not running.
NOTE: Real Time Monitoring should be closed when not in use, as it can impact Zone Director performance. By default it will be running if it is not stopped manually.
Zone director is much know as management device[Controller] with some capability of monitoring.
Flex-Master is the Ruckus Software which can be used for management, monitoring and reporting stuff. Click the below link to learn about Flex Master.
I hope it is helpful