Hi,
is it requirement to have your vCenter in AD domain?
In vsphere-esxi-vcenter-server-51-installation-setup-guide.pdf there is information on page 222:
"If the system that you use for your vCenter Server installation belongs to a workgroup rather than a
domain, not all functionality is available to vCenter Server. If assigned to a workgroup, the vCenter Server
system is not able to discover all domains and systems available on the network when using some features."
Please can someone describe this more?