Today I had to import an machine from our vSphere 5.1 production vCenter to our vSphere 5.1 test vCenter. I allready found that is isn’t possible to connect with VMware converter 5 directly to a vSphere 5.1 vCenter server. Converter will crash when you try to do this*. It is however possible to connect directly to an ESXi 5 (or less) host.
We recently upgraded our vCenter servers to vSphere 5.1.
With vSphere 5.1 there is an considerable change in how vCenter server is installed. The vCenter server is now composed out of the Single Sign On Server service, the Inventory Server service and the vCenter Server service. Authorization to the vCenter instance is now done against the Single Sign On server (SSO) and by default the local administrators group of the vCenter server is no longer administrator on the vCenter server instance. It is recommended to use an AD group as administrator to your vCenter instance.