Domain Functional Level Member Servers

We very recently completed a project to retire two old domain controllers running server 2003 r2.

Domain functional level member servers. Today i recognized that it is not easy to find a comprehensive summary table about active directory domain and forest functional levels operating mode on the internet. This was fine until a few days later when i needed to test an application that was not supported for functional domains and forest levels greater than server 2012r2. I was able to. Sign in to the domain controller holding the pdc emulator fsmo role.

However functional levels do not affect which operating systems you can run on workstations and member servers that are joined to the domain or forest. Legen sie bei der bereitstellung von ad ds die domänen und gesamtstrukturfunktionsebenen auf den höchsten wert fest den die umgebung unterstützen kann. However the functional level of the domain has not yet been updated for the 2008 r2 servers just in the long shot case of the need for a rollback to the old controllers. When you deploy ad ds set the domain and forest functional levels to the highest.

In the left navigation pane right click the domain for which you want to raise the functional level and then click raise domain functional level. Domain functional level dfl determines the features of a domain controller dc based on the windows server operating system os it runs on. Welche domain controller bei welchem domain functional level unterstützt werden geht ebenfalls auf der liste hervor. You can find details on this behavior and how to revert the domain or forest functional level here.

If you create a new domain at the windows server 2008 domain functional level or higher dfs replication is automatically used to replicate sysvol. There are some explanations with the functions up to windows server 2008 r2 and some on the differences between windows server 2008 r2 and windows server 2012. At the windows server 2008 and higher domain functional levels distributed file service dfs replication is used to replicate sysvol folder contents between domain controllers. Rather than starting from scratch with this lab i decided to test lowering the functional levels from server 2016 to server 2012r2.

Die folgenden tabelle stellt dar wie sich die windows server versionen bezüglich domain functional levels geändert haben. Open active directory domains and trusts domain msc. The raise domain functional level window appears. In this lab i had the domain and forest functional level set to server 2016.

They are now replaced with shiny new 2008 r2 boxes.