You can enable metrics collection for all devices that belong to the root admin domain:
Select Devices → <Admin Domain Name> → Global → Common Device Settings → Performance Monitoring → Metrics to view the Metrics page.
Metrics dialog.png)
Select Yes or No against Sensors can optionally collect CPU usage data. CPU sampling can affect overall sensor performance, so this option should only be enabled when troubleshooting. Would you like to collect CPU usage data? (This is disabled by default).
Select Yes or No against the choice Sensors can optionally collect port throughput usage data. On sensors with many monitoring ports, this option can produce a large quantity of data, so it is disabled by default to optimize Manager disk space. Would you like to collect port throughput usage data?.
Click Save.
Note
When metrics collection is enabled, Sensors automatically forward core metrics to the Manager.