You can view the device usage metrics in the Performance Charts page. In order to view the device usage values, performance monitoring has to be enabled for data collection. The list of metrics available for monitoring are as follows:
Throughput — Displays the Sensor and port throughput usage.
Memory — Displays the memory usage which helps monitor the usage before reaching the threshold limit.
CPU — Displays the device CPU usage which helps monitor the usage before reaching the threshold limit.
Follow this procedure to view memory usage (this example demonstrates steps for viewing memory usage):
Navigate to Devices → <Admin Domain Name> → Devices → Device Name → Troubleshooting → Performance Charts.
Select the Memory tab.
Memory.png "Device_usage_performance_charts.png")
The memory usage chart will display data as per your selection in the drop-down menus. Click the refresh icon to refresh the data.
The display of options vary according to the Sensor model type and version. Sometimes the chart may not be available for some options if the option is not applicable to the configured Sensor (Example: Decrypted Flow Pool option is only applicable to sensors that support SSL decryption).