Converting a Single-Node AVI Controller Deployment to a 3-node Cluster

To convert a single-node Avi Controller deployment into a 3-node deployment, use the following steps.

1. Install 1 new Avi Controller nodes. During installation, configure only the following settings for each node:

• Node management IP address

• Gateway address

1. Connect the management interface of each new Avi Controller node to the same network as the incumbent Avi Controller. After the incumbent Avi Controller detects the 2 new Avi Controller nodes, the incumbent Avi Controller will become the primary (leader) Avi Controller for the 3-node cluster.

2. Use a web browser to navigate to the management IP address of the primary (leader) Avi Controller.

3. Navigate to Administrator > Controller , and click Edit . The Edit Controller Configuration popup appears.

4. In the Controller Cluster IP field, enter the shared IP address for the Controller cluster.

5. In the Hostname/IP fields, enter the management IP addresses of the new Avi Controller nodes.

After these steps, the incumbent Avi Controller becomes the primary (leader) for the cluster and invites the other Avi Controllers to the cluster as members. Avi Vantage then performs a warm reboot of the cluster. This process can take 2-3 minutes. The configuration of the primary (leader) Controller is synchronized to the new member nodes when the cluster comes online following the reboot.