Fortinet 100A - Manual (Page 96)

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01-28007-0068-20041203 Fortinet Inc.
Managing an HA cluster System config
To view and manage logs for individual cluster units
1 Connect to the cluster and log into the web-based manager.
2 Go to Log&Report > Log Access.
The Traffic log, Event log, Attack log, Antivirus log, Web Filter log, and Email Filter log
for the primary unit are displayed.
The HA Cluster pull-down list displays the serial number of the FortiGate unit for which
logs are displayed.
3 Select the serial number of one of the FortiGate units in the cluster to display the logs
for that FortiGate unit.
You can view, search and manage logs saved to memory or logs saved to the hard
disk, depending on the configuration of the cluster unit.
To monitor cluster units for failover
If the primary unit in the cluster fails, the units in the cluster renegotiate to select a new
primary unit. Failure of the primary unit results in the following:
• If SNMP is enabled, the new primary FortiGate unit sends the trap message “HA
switch”. This trap indicates that the primary unit in an HA cluster has failed and has
been replaced with a new primary unit.
• The cluster contains fewer FortiGate units. The failed primary unit no longer
appears on the Cluster Members list.
• The host name and serial number of the primary cluster unit changes.
• The new primary unit logs the following messages to the event log:
HA slave became master
Detected HA member dead
CPU Usage The current CPU status of each cluster unit. The web-based manager
displays CPU usage for core processes only. CPU usage for
management processes (for example, for HTTPS connections to the
web-based manager) is excluded.
Memory Usage The current memory status of each cluster unit. The web-based manager
displays memory usage for core processes only. Memory usage for
management processes (for example, for HTTPS connections to the
web-based manager) is excluded.
Active Sessions The number of communications sessions being processed by the each
cluster unit.
Total Packets The number of packets that have been processed by the cluster unit
since it last started up.
Virus Detected The number of viruses detected by the cluster unit.
Network Utilization The total network bandwidth being used by all of the cluster unit
interfaces.
Total Bytes The number of bytes that have been processed by the cluster unit since it
last started up.
Intrusion Detected The number of intrusions or attacks detected by the cluster unit.