Raise Domain Functional Level How Long Does It Take

First to raise either level to 2008 you must be running a 2008 domain controller.

Raise domain functional level how long does it take. 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. Raising the functional level caution do not raise the functional level if the domain has or will have a domain controller that is of an earlier version than the version that is cited for that level. Open the active directory domains and trusts snap in.

In the left pane browse to the domain you want to raise right click it and select raise domain functional level. After a few seconds you should see a message stating whether the operation was successful. When the domain functional level is raised it not possible to promote operating systems that are running earlier versions of the os.

Any existing windows nt 4 0 or windows 2000 based domain controllers in the environment will no longer function. Choosing domain functional l evel. Thanks as always.

For example a windows server 2008 functional level requires that all domain controllers have windows server 2008 or a later operating system. If your domain forest level functional level are windows 2003 you have no roll back. Further by default the dfl for any new domain added to forest will take the same level as the ffl.

It probably takes longer when i keeping looking at it so i wondered if anyone had a rough idea. I ve just updated my forest from 2003 to 2008 and wondered roughly how long it takes for ad to reflect the new functional level for the forest. Raising the domain and forest functional levels to windows server 2003 is a nonreversible task and prohibits the addition of windows nt 4 0 based or windows 2000 based domain controllers to the environment.

For instance if the ffl is. Authentication errors may occur on a domain controller after the domain functional level is raised to windows server 2008 or higher if the domain controller has already replicated the dfl change but has not yet refreshed the krbtgt password. Similarly to raise either level to.