When ADOMs are enabled, the default root ADOM type is Fabric. Fabric ADOMs show combined results from all Security Fabric devices in the Device Manager, Log View, FortiView, Incidents & Events and Reports panes. For more information on Fabric ADOMs, see Security Fabric ADOMs.
In FortiAnalyzer 6.2.0 and earlier, the root ADOM is a FortiGate ADOM. When upgrading to FortiAnalyzer 6.2.1 and later, the root ADOM type will not be changed to Fabric. Resetting the FortiAnalyzer settings through a factory reset will cause the root ADOM to become a Fabric ADOM.