When you log into the FortiGate-7000F GUI or CLI by connecting to the IP address of the management interface, or through a console connection, you are logging into the FIM in slot 1. The FIM in slot 1 is the FortiGate-7000F config-sync primary (or master). All configuration changes must be made from the GUI or CLI of the FIM in slot 1. The FIM in slot 1 synchronizes configuration changes to the other FIM and the FPMs and makes sure they remain synchronized with the FIM in slot 1.
If the FIM in slot 1 fails or reboots, the FIM in slot 2 becomes the config-sync primary (or master).
For the FortiGate-7000F to operate normally, the configurations of the FIMs and FPMs must be synchronized. You can use the information in the following sections to make sure that these configurations are synchronized