Under what condition is HA not supported by FortiAnalyzer?

HA (High Availability) is a critical feature for ensuring continuous operation and redundancy in Fortinet products. In the context of FortiAnalyzer, HA is not supported when FortiManager features are enabled. This is because enabling FortiManager features transforms the FortiAnalyzer into a management device, which is not designed to operate in an HA cluster setup.

When FortiManager features are enabled, the system takes on specific roles and responsibilities that are incompatible with the HA architecture. HA is designed for FortiAnalyzers to operate in a synchronized manner, sharing logs and system state, which is disrupted if FortiManager capabilities are integrated. Therefore, HA cannot function effectively under such a configuration.

The other conditions mentioned do not inherently prevent HA from being supported. Devices of different models, mismatched firmware versions, or standalone configurations can experience limitations or issues, but these conditions do not outright negate the possibility of HA functionality in the same way that enabling FortiManager does.