I have the license now for Essentials Plus.
We have 3 hosts and about 40 Vms so this package works nicely for us.
Only 1 of my hosts was on 6.x Free version I was able to attach the host with now issues to Vcenter Server 6.0
Our other 2 hosts are still 5.5 (free version)
The 6.0 VC server will not allow them to attach due to licensing limitations.
This totally makes sense as their licenses will not allow VC management.
Is there any way without having to drive to the datacentre and manually upgrading the 2 hosts to get these 2 brought over or upgraded to 6.0 then brought over?
Again the free 6.0 host we had came over no problem.
I have installed VUM but I think this will only be good for already attached hosts:/