- Domain Controller 1 : Windows Server 2008 R2
- Domain Controller 2 : Windows Server 2016
Now we will transfer FSMO Roles to Windows Server 2016 from Windows Server 2008 R2
- Log in to Our DC 2 and run Command as in the Fig
netdom query fsmo
Fig: Checking the current FSMO Roles
To transfer domain-specific FSMO roles, ie RID Master, Infrastructure Master and PDC Emulator, follow the steps below.Open the Active Directory Users and Computers console, right-click the domain and then in Operations Masters. Here, each tab displays the three FSMO roles.
To transfer one of the three FSMO roles to another DC, click Change and confirm your action.
Like this we have to change for PDC and Infrastructure
To transfer the forest-specific FSMO Domain Naming Master role, follow these steps.
Open the Active Directory Domain and Trusts console, right-click the icon and then Operations Masters. If you are not already connected to the DC you are about to transfer the role, then you can do so by clicking Change Active Directory Domain Controller in the same menu.
In the same way, you will see who is the current role holder and by clicking the Change button you can transfer the role to another DC.
To transfer the forest-specific FSMO Schema Master role, follow the steps below.
First, in a command-line window with administrator rights, type the following command to register the AD Schema snap-in.
Then, open an MMC console (for example, pressing mmc on the Search or Run), and from the File – Add / Remove Snap-in menu, add the Active Directory Schema console.
Here, right click on the icon and then in Operations Masters. You will need to be connected to the corresponding DC you are going to transfer the role you can do through the Change Active Directory Domain Controller option in the menu.
As before, by clicking the Change button you can move the Schema Master role to another DC.
Now check the status by using the same command
netdom query fsmo
To Remove a Domain controller we have to demote the Domain controller
Here we are demoting the DC Server 2008 R2
Run dcpromo.exe for demoting the existing Domain Controller running on Windows server 2008 R2
Fig: Demoting a Domain Controller
Run -> dcpromot.exe
Then, Select the next option as in the Figure
Fig: Active Directory installation Wizard
Here we can delete the domain also if this is the last domain controller
In our case we are having one more domain controller running on Windows Server 2016 so no need to delete the domain
Then, Enter the Password for Confirmation
Then Process started for deletion of domain controller and it will reboot on completion
After demoting , Domain controller it will be removed from the active directory as in the figure