How to display the high availability (HA) status of the FortiGate unit

The "diagnose sys ha status" command in FortiGate is used to display the high availability (HA) status of the FortiGate unit in a high availability cluster. Here's what this command does and the information it provides:

1. HA Status: It provides an overview of the HA status of the FortiGate unit, indicating whether it is the primary unit or the secondary unit in the HA cluster.

2. HA Mode: It displays the HA mode configured for the cluster, such as active-passive or active-active.

3. HA Heartbeat: This section shows the heartbeat status between the primary and secondary units. A healthy heartbeat indicates proper communication between the cluster members.

4. HA Synchronization: It indicates the synchronization status of configuration and session information between the primary and secondary units. Synchronization ensures that both units have consistent configurations and session tables.

5. Failover Events: This section provides information about any failover events that have occurred, such as when the secondary unit takes over as the primary unit due to a failure or maintenance activity.

6. Cluster Configuration: It displays details about the HA cluster configuration, including cluster ID, cluster group ID, and virtual MAC address.

Here's an example output of the "diagnose sys ha status" command:

# diagnose sys ha status
Cluster ID: 1234567890
Cluster Group ID: 1
Virtual MAC: 00:09:0f:09:00:00
Mode: Active-Passive
Current virtual cluster members:
  1: hostname1 (primary) - 10.0.0.1
  2: hostname2 (secondary) - 10.0.0.2
Heartbeat Information:
  Status: Normal
  Last heartbeat sent: 10 seconds ago
  Last heartbeat received: 10 seconds ago
  Heartbeat errors: 0
Synchronization Information:
  Status: In Sync
  Last synchronization: 5 seconds ago
  Synchronization errors: 0
Failover Counters:
  Last failover: 2 days, 4 hours, 30 minutes ago
  Total failovers: 5

This output provides a comprehensive view of the HA status, including cluster configuration, heartbeat status, synchronization status, and failover events.