I’ve just completed this 4 part Video Tutorial Series on how to upgrade to vSphere 5.1 In this series I cover such things as Single Sign On database creation and installation, vSphere Web Client installation along with manually adding identity sources, Inventory Service Upgrade, vSphere 5.1 Client Upgrade, ESXi Host Agent Upgrade, vSphere 5.1 Update Manager installation and finally how to use Update Manager to upgrade our ESXi host to 5.1