Fortinet FortiGate-800 manual System status, Viewing CPU and memory status, 111

System status System status

System status

You can use the system status monitor to display FortiGate system health information. The system health information includes memory usage, the number of active communication sessions, and the amount of network bandwidth currently in use. The web-based manager displays current statistics as well as statistics for the previous minute.

If the FortiGate unit contains a hard disk, the system status monitor displays the capacity of the hard disk and the amount of used and free space on the hard disk.

You can also view current virus and intrusion status. The web-based manager displays the current number of viruses and attacks as well as a graph of virus and attack levels over the previous 20 hours.

In each case you can set an automatic refresh interval that updates the display every 5 to 30 seconds. You can also refresh the display manually.

•Viewing CPU and memory status

•Viewing sessions and network status

•Viewing virus and intrusions status

Viewing CPU and memory status

Current CPU and memory status indicates how close the FortiGate unit is to running at full capacity. The web-based manager displays CPU and memory usage for core processes only. CPU and memory use for management processes (for example, for HTTPS connections to the web-based manager) is excluded.

If CPU and memory use is low, the FortiGate unit is able to process much more network traffic than is currently running. If CPU and memory use is high, the FortiGate unit is performing near its full capacity. Putting additional demands on the system might cause traffic processing delays.

CPU and memory intensive processes, such as encrypting and decrypting IPSec VPN traffic, virus scanning, and processing high levels of network traffic containing small packets, increase CPU and memory usage.

To view CPU and memory status

1Go to System > Status > Monitor.

CPU & Memory status is displayed. The display includes bar graphs of current CPU and memory usage as well as line graphs of CPU and memory usage for the previous minute.

If your FortiGate unit contains a hard disk, CPU, memory, and hard disk status are displayed.

2Set the automatic refresh interval and select Go to control how often the web-based manager updates the display.

More frequent updates use system resources and increase network traffic. However, this occurs only when you are viewing the display using the web-based manager.

3Select Refresh to manually update the information displayed.

FortiGate-800 Installation and Configuration Guide 111