If you are using a load balancer for high availability for vCenter Single Sign-On, you must verify that it is supported and configured correctly before upgrading to vCenter Server 6.0.

In environments with less than four vCenter Server systems, VMware typically recommends a single Platform Services Controller instance and the associated vCenter Single Sign-On service. In larger environments, consider using multiple Platform Services Controller instances, protected by a network load balancer. The white paper vCenter Server 6.0 Deployment Guide on the VMware website discusses this setup. For current information on maximums, see the Configuration Maximums.

See http://kb.vmware.com/kb/2112736 for vCenter Single Sign-On high availability compatibility matrix.



  1. Review the vCenter Server 6.0 Deployment Guide documentation for load balancing information.
  2. If your load balancer is not supported, replace it with a supported load balancer.
  3. Verify that the load balancer is correctly configured based on recommendations in vCenter Server 6.0 Deployment Guide.