Something else I just thought about, when I bring in the ESX 4.1 hosts to be in the same vCenter 5.1 with the ESXi 5.1 hosts, can I create a cluster for them and move the VMs from the ESX 4.1 hosts that are not in a cluster into the ESXi 5.1 clustered hosts?
I believe that as long as they are in the same network that I can vMotion the VMs from stand-alone host servers into those in a cluster...is that correct? I figured that if I start fresh with a new database then this will be the scenario that I would work in...all ESX 4.1 hosts will show up in vCenter 5.1 as stand-alone hosts and then I can create new cluster of ESXi 5.1 before moving VMs onto them.
If I chose to keep the existing databases then my ESX 4.1 hosts will show up in their current cluster which will make me create a new one for the new hardware running ESXi 5.1 anyway being that they are using a different CPU family.
Please confirm...thanks.