Determining the primary FPM
You can use the diagnose load-balance status command to determine which FPM is operating as the primary FPM. The following example diagnose load-balance status output for a FortiGate-7060E showing that the FPM in slot 3 is the primary (master) FPM. The command output also shows the status of all of the FPMs in the FortiGate-7060E. The output also shows that the FPM in slot 4 is either missing or down.
diagnose load-balance status
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Slot: 2 Module SN: FIM04E3E16000222
FIM02: FIM04E3E16000222
Master FPM Blade: slot-3
Slot 3: FPM20E3E17900133
Status:Working Function:Active
Link: Base: Up Fabric: Up
Heartbeat: Management: Good Data: Good
Status Message:"Running"
Slot 4:
Status:Dead Function:Active
Link: Base: Up Fabric: Down
Heartbeat: Management: Failed Data: Failed
Status Message:"Waiting for management heartbeat."
You can also determine which FPM is operating as the primary (master) FPM by hovering over the FPMs in the Security Fabric dashboard widget.