Upgrade a Omnissa Access Cluster

For your existing deployment, if you deployed multiple 21.08.X virtual appliances in a cluster for failover or high availability, you upgrade the nodes one at a time to 22.09.X.

Expect some downtime during upgrade and plan the timing of your upgrade accordingly.

Procedure

1. Take snapshots of the database and the service nodes. See KB article 2032907, Managing snapshots in vSphere Web Client.

2. Remove all nodes except one from the load balancer.

3. Upgrade the node that is still connected to the load balancer.

   Follow the process for an online or offline upgrade, as described in Online Upgrading to Omnissa Access 22.09 or Upgrading Omnissa Access Offline.

   Important: Expect some downtime during the upgrade process.

4. After the node is upgraded, leave it connected to the load balancer.

   This ensures that the Omnissa Access service is available while you upgrade the other nodes.

5. Upgrade the other nodes one at a time.

6. After all the nodes are upgraded, add them back to the load balancer.