To patch a vCenter Server Appliance configured in a vCenter High Availability (HA) cluster, you must remove the vCenter Server High Availability configuration and delete the Passive and Witness nodes. After patching the vCenter Server Appliance, you must re-create your vCenter Server High Availability clusters.
This procedure describes how to remove the vCenter HA configuration.
- In the vSphere Client, log in to the vCenter Server from which you want to remove the vCenter HA configuration.
- Click the Configure tab, and select vCenter HA.
- Select Remove vCenter HA .
- The vCenter HA cluster's configuration is removed from the Active, Passive, and Witness nodes.
- The Active node continues to run as a standalone vCenter Server Appliance.
- Wait until the Witness node joins the VCHA cluster and then patch the Passive node.
- Delete the Passive and Witness nodes.
What to do next
After patching the vCenter Server Appliance, you can configure vCenter HA. For information about configuring vCenter HA, see vSphere Availability.