Chapter 9 High Availability for FortiOS 5.0 : Operating a cluster : Clusters and file quarantine
  
Clusters and file quarantine
You can configure file quarantine for a cluster in the same way as configuring file quarantine for a standalone FortiGate unit. Quarantine configuration changes made to the cluster are shared by all cluster units.
In an active-active cluster, both the primary unit and the subordinate units accept antivirus sessions and may quarantine files. In an active-passive cluster, only the primary unit quarantines files. Multiple cluster units in an active-passive cluster may have quarantined files if different cluster units have been the primary unit.
All cluster units quarantine files separately to their own hard disk. You can go to Log&Report > Archive Access > Quarantine to view and manage the quarantine file list for each cluster unit.
All cluster units can also quarantine files to a FortiAnalyzer unit. When you configure a FortiAnalyzer unit to receive quarantine files from a cluster, you should add each cluster unit to the FortiAnalyzer device configuration so that the FortiAnalyzer unit can receive quarantine files from all cluster units.