Hi,
WE have 5 virtualized server 2012 DC's in 4 different subnets and a single physical server 2016 DC.
In site A we have 2 VM 2012 DCs and singel 2016 physical DC. One of the VM 2012 DC has all of the FSMO roles plus DHCP.
The Physical DC also has DHCP role and we use these 2 DHCP as failover.
Now we want in the site A remove the DCs that are 2012 and replace them with the server 2016 or 2019.
What is best way to do this? Should we just move the FSMO roles from the VM 2012 DC to the physical 2016 DC, then demote the VM 2012 DC? What would heppens to the DHCP on this VM 2012 after demoting the DC?
Or should we move the FSMO roles to a newly installed and promoted VM 2016 DC and also move the DHCP from 2012 DC/DHCP to the new VM 2016 DC/DHCP and then demote the 2012 VM DC?
Any suggestion?