7.4

Table Of Contents
Configuring Additional Instances of the vRealize Automation Appliance
The system administrator can deploy multiple instances of the vRealize Automation appliance to ensure
redundancy in a high-availability environment.
For each vRealize Automation appliance, you must enable time synchronization and add the appliance to
a cluster. Configuration information based on settings for the initial (primary) vRealize Automation
appliance is added automatically when you add the appliance to the cluster.
If you install a distributed installation with load balancers for high availability and failover, notify the team
responsible for configuring your vRealize Automation environment. Your tenant administrators must
configure Directories Management for high availability when they configure the link to your Active
Directory.
Add Another vRealize Automation Appliance to the Cluster
For high availability, distributed installations can use a load balancer in front of a cluster of
vRealize Automation appliance nodes.
You use the management interface on the new vRealize Automation appliance to join it to an existing
cluster of one or more appliances. The join operation copies configuration information to the new
appliance that you are adding, including certificate, SSO, licensing, database, and messaging
information.
You must add appliances to a cluster one at a time and not in parallel.
Prerequisites
n
Have one or more vRealize Automation appliances already in the cluster, where one is the primary
node. See Configure the First vRealize Automation Appliance in a Cluster.
You can set a new appliance to be the primary node only after joining it to the cluster.
n
Create the new appliance node. See Deploy the vRealize Automation Appliance.
n
Verify that the load balancer is configured for use with the new appliance.
n
Verify that traffic can pass through the load balancer to reach all current nodes and the new node that
you are about to add.
n
Verify that all vRealize Automation services are started on the current nodes.
Procedure
1 Log in to the new vRealize Automation appliance management interface as root.
https://vrealize-automation-appliance-FQDN:5480
Continue past any certificate warnings.
2 If the installation wizard appears, cancel it so that you can go to the management interface instead of
the wizard.
3 Select Admin > Time Settings, and set the time source to the same one that the rest of the cluster
appliances use.
Installing vRealize Automation
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