Which command is primarily used to check overall system performance on FortiAnalyzer?

The command primarily used to check overall system performance on FortiAnalyzer is "Get sys performance." This command provides comprehensive metrics that are essential for evaluating the system's efficiency and health. It gives insights into CPU usage, memory consumption, and other critical performance indicators that help administrators understand the current state of the FortiAnalyzer and identify potential issues.

This command allows for monitoring in real-time, which is vital for ensuring that the FortiAnalyzer operates optimally and can handle the required workload. It serves as a foundational tool for system administrators when performing diagnostics or tuning the FortiAnalyzer for better operational performance.

The other options might suggest related functionalities, but they do not specifically correspond to the designated command for checking the overall system performance, making "Get sys performance" the most accurate choice.