A. FortiAnalyzer HA supports synchronization of logs as well as some system and configuration settings.
B. FortiAnalyzer HA active-passive mode can function without VRR
C. All devices in a FortiAnalyzer HA cluster must run in the same operation mode, either analyzer mode or collector mode.
D. All devices in a FortiAnalyzer HA cluster must have the same available disk space.
Explanation:
The two correct statements about high availability (HA) on FortiAnalyzer are:
FortiAnalyzer HA supports synchronization of logs as well as some system and configuration settings.
FortiAnalyzer HA synchronizes both logs and certain system configuration settings between the units in the cluster to ensure consistent operation.
All devices in a FortiAnalyzer HA cluster must run in the same operation mode, either analyzer mode or collector mode.
In an HA cluster, all devices must be configured to operat` e in the same mode ― either analyzer mode or collector mode―to ensure consistency and proper functionality across the cluster.
The other options, such as VRRP, are not required for HA in FortiAnalyzer, and disk space can vary between nodes but may impact log storage capacity.