Log severity levels

Each log entry contains a level field that indicates the estimated severity of the event that caused the log entry. When a logging severity level is defined, the FortiAnalyzer unit logs all messages at and above the selected severity level. For example, if you select Error, FortiAnalyzer logs Error, Critical, Alert, and Emergency level messages.

The Debug log severity level is rarely used. Debug log messages are useful when the FortiAnalyzer unit is not functioning properly. Debug log messages are only generated if the log severity level is set to Debug. Debug log messages are generated by all subtypes of the event log.

To view information about log severity levels, see the FortiAnalyzer Log Message Reference.