Split-Task VDOM mode and HA

Split-Task VDOM mode does not support virtual clustering. Split-Task VDOM mode supports all other FortiGate 6000F HA configurations described in FortiGate-6000 high availability, including standard FGCP HA, FGSP, standalone configuration synchronization, and VRRP.

To successfully form an FGCP HA cluster, both FortiGate 6000Fs must be operating in the same VDOM mode (Multi or Split-Task). You should change both FortiGate 6000Fs to the VDOM mode that you want them to operate in before configuring HA. To change the VDOM mode of an operating cluster, you need remove the backup FortiGate 6000F from the cluster, switch both FortiGate 6000Fs to the other VDOM mode and then re-form the cluster. This process will cause traffic interruptions.