You can upgrade from vCenter Server Appliance 5.1 Update 3 or 5.5.x to 6.0.

The upgrade process includes:

  1. Export of the vCenter Server Appliance 5.1 Update 3 or 5.5.x configuration.
  2. Deployment of vCenter Server Appliance 6.0.
  3. Migration of the vCenter Server Appliance 5.1 Update 3 or 5.5.x services and configuration data to the new vCenter Server Appliance 6.0 deployment.
  4. Power-off of the vCenter Server Appliance 5.1 Update 3 or 5.5.x machine that you want to upgrade.

If your current vCenter Server Appliance version is earlier than 5.1 Update 3, you must upgrade to 5.1 Update 3 or later before upgrading to vCenter Server Appliance 6.0.

vCenter Server Appliance with an embedded Platform Services Controller instance is the only supported upgrade option for vCenter Server Appliance 6.0.

If you have multiple instances of vCenter Server Appliance, concurrent upgrades are not supported. You must upgrade one instance at a time.

Figure 1. vCenter Server Appliance Upgrade Workflow

vCenter Server Appliance 5.1U3 or 5.5 upgrade workflow tasks