Should You Raise Domain Functional Level

It also determines which windows server o s.

Should you raise domain functional level. By using functional level raise and downgrade feature you can raise and downgrade the domain and forest functional level. If you re raising the functional level of a domain ensure that all the dcs in the domain is running os version that is compatible with the new functional level. Steps to raise domain functional level. You must be part of the domain admins group to raise the dfl.

Additionally the current domain functional level must already be at the newest level. Open the active directory domains and trusts utility. You can run on domain controllers in the domain or forest. If the change can be undone a forest recovery must be used.

Functional level determines the active directory domain services capabilities in domain and forest. It is advisable to upgrade the functional level once the prerequisites are met. Right click the domain on the left side and select raise domain functional level. Generally the changes to the domain and forest functional levels are irreversible.

When the domain functional level is raised it not possible to promote operating systems that are running earlier versions of the os. If these requirements are met the administrator can raise the forest functional level. Welche domain controller bei welchem domain functional level unterstützt werden geht ebenfalls auf der liste hervor. Run the following steps on a windows machine having the remote server administration tools rsat installed.

Log in as domain administrator. After upgrading all dcs in the domain or forest the administrator is able to raise the functional level and this level acts as a flag informing the dcs and other components as well that certain features can now be enabled. For example if you raise the domain functional level to windows server 2012 you will not be able to promote a server that is running windows server 2008 to domain controller. Introduction this is a brief and high level blog on the windows domain functional level dfl.