Chapter 9 High Availability for FortiOS 5.0 : Virtual clusters : Configuring HA for virtual clustering
  
Configuring HA for virtual clustering
If your cluster uses VDOMs, you are configuring virtual clustering. Most virtual cluster HA options are the same as normal HA options. However, virtual clusters include VDOM partitioning options. Other differences between configuration options for regular HA and for virtual clustering HA are described below.
To configure HA options for a cluster with VDOMs enabled:
Log into the global web‑based manager and go to System > Config > HA.
From the CLI, log into the Global Configuration:
The following example shows how to configure active-active virtual clustering:
config global
config system ha
set mode a-a
set group-name vexample1.com
set password vHA_pass_1
end
end
The following example shows how to configure active-passive virtual clustering:
config global
config system ha
set mode a-p
set group-name vexample1.com
set password vHA_pass_1
end
end
The following example shows how to configure VDOM partitioning for virtual clustering. In the example, the FortiGate unit is configured with three VDOMs (domain_1, domain_2, and domain_3) in addition to the root VDOM. The example shows how to set up a basic HA configuration that sets the device priority of virtual cluster 1 to 200. The example also shows how to enable vcluster2, how to set the device priority of virtual cluster 2 to 100 and how to add the virtual domains domain_2 and domain_3 to virtual cluster 2.
When you enable multiple VDOMs, vcluster2 is enabled by default. Even so the command to enable vcluster2 is included in this example in case for some reason it has been disabled. When vcluster2 is enabled, override is also enabled.
The result of this configuration would be that the cluster unit that you are logged into becomes the primary unit for virtual cluster 1. This cluster unit processes all traffic for the root and domain_1 virtual domains.
config global
config system ha
set mode a-p
set group-name vexample1.com
set password vHA_pass_1
set priority 200
set vcluster2 enable
config secondary-vcluster
set vdom domain_2 domain_3
set priority 100
end
end
end
The following example shows how to use the execute ha manage command to change the device priorities for virtual cluster 1 and virtual cluster 2 for the other unit in the cluster. The commands set the device priority of virtual cluster 1 to 100 and virtual cluster 2 to 200.
The result of this configuration would be that the other cluster unit becomes the primary unit for virtual cluster 2. This other cluster unit would process all traffic for the domain_2 and domain_3 virtual domains.
config global
execute ha manage 1
config system ha
set priority 100
set vcluster2 enable
config secondary-vcluster
set priority 200
end
end
end
end