Solved

Switching from mixed mode to Native Mode.

Posted on 2009-05-12
3
799 Views
Last Modified: 2012-05-06
My company will be upgrading to server 2008, I understand fully on how to accomplish the upgrade. However I have never been tasked with switching from a mixed to a native environment. Would someone please be kind enough to  post the steps to take on how to switch from a mixed environment to a native environment. We will be running server 2008 and server 2003. would like to switch to server 2008.
0
Comment
Question by:Chris133
3 Comments
 
LVL 9

Assisted Solution

by:craigothy
craigothy earned 200 total points
ID: 24368536
First off, all domain controllers running server 2003 will need to be upgraded to server 2008 domain controllers or demoted completely to a member server.  Once you have that task complete, you can move the domain to native mode.  If it is a single domain, single forest environment, you can then also move the forest to native mode.  See the following:
http://www.petri.co.il/raising-windows-server-2008-active-directory-domain-and-forest-functional-levels.htm
0
 
LVL 8

Accepted Solution

by:
zoubi77 earned 300 total points
ID: 24368593
First, make sure that your Active Directory is healthy, and you have a perfect replication between the existing Domain Controllers. Using NetDiag, DCDiag, Repadmin from Windows Support tools could help you in this task. It is a very wrong approach to expect, that an in-place upgrade will solve your existing Active Directory problems.

Second, you should have a good backup of your Domain Controllers, including the system state. If you have more than one DC (which is necessary)  backup all of them, or at least two DC.

Check and raise the Domain and Forest functional levels. You cannot upgrade directly from Windows 2000 mixed, or Windows Server 2003 interim domain functional levels.

The first Windows Server 2008 Domain Controller in the forest must be a Global Catalog Server, and it cannot be a Read Only Domain Controller, RODC.

Important: Check the FSMO roles assignments. When you prepare the existing AD, you should run adprep /forestprep on the Schema operations master (your 2003 DC), and adprep /domainprep /gpprep on the infrastructure master.

When you do adprep, be shure to use the right version..
0
 

Author Closing Comment

by:Chris133
ID: 31580702
Thank you for the answer you provided.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction: I have always been a big fan of Windows but my liking towards it is slowly being eroded by the variety of other Applications that I encounter, when I browse the Web. Most of the software available is free and maybe Open Source too. …
Have you ever had a hard drive that you can't boot into, but need to change the registry? Here is the solution! This article guides you through accessing and editing a registry of a non-primary drive. To read registry information on a non-prim…
This video Micro Tutorial explains how to clone a hard drive using a commercial software product for Windows systems called Casper from Future Systems Solutions (FSS). Cloning makes an exact, complete copy of one hard disk drive (HDD) onto another d…
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now