Solved

Raise the funcitonal level of a domain

Posted on 2011-09-29
9
343 Views
Last Modified: 2012-05-12
We have a domain with various servers from Windows Server 2000, 2003 & 2008 R2.

We have two domain controllers
Primary DC 2008 R2.  Secondary DC 2003 R2.

The 2000 Servers are simply holding legacy applications and are not Domain Controllers.  

Our functional level of the domain and forest is set to 2000 Native.  

Are there any issues with raising the funcitonal level of the domain and forest to 2003?
0
Comment
Question by:DHPBilcare
  • 4
  • 3
  • 2
9 Comments
 
LVL 59

Accepted Solution

by:
Darius Ghassem earned 250 total points
ID: 36814780
No issues at all

The only issue is that you will not be able to run any DC lower then Windows 2003 Server
0
 
LVL 39

Assisted Solution

by:Krzysztof Pytko
Krzysztof Pytko earned 250 total points
ID: 36814815
As dariusg said, no problem. If it's single forest single domain environment then you don't have to worry about Forest Functional Level. FFL can be at the same level as DFL. But if you have more domains, the be careful. FFL determines that other domain also must work in 2003 DFL!

The lowest OS on DC determines the highets possible DFL
The lowest DFL determines the highest possible FFL

Regards,
Krzysztof
0
 

Author Comment

by:DHPBilcare
ID: 36814861
Only other aspect to mention is that we are moving torwards a full domain trust with our sister company.  Two seperate domains.

Their functional level is 2003 native thus we have to riase ours to enable the two way trust.
0
 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 36814866
That would be the best option
0
Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

 

Author Comment

by:DHPBilcare
ID: 36814936
How long does the process take to raise?  

I know not best practice but are there any issues doing this while users are on the system?
0
 
LVL 39

Expert Comment

by:Krzysztof Pytko
ID: 36815019
WHen you click "OK", it's done :] Your DFL is changed, up-and-running
The same for FFL

Krzysztof
0
 
LVL 39

Expert Comment

by:Krzysztof Pytko
ID: 36815029
No, this action does not affect users workong in the system. That process is transparent.

Krzysztof
0
 

Author Comment

by:DHPBilcare
ID: 36816899
Just to confirm one last point.

I have now raised the Functional level of our domain to 2003.  The forest is still set to 2000.

Will the trust now work?  

Just to clarify is there any issue to me simply raising our FFL to 2003 also?
0
 
LVL 39

Expert Comment

by:Krzysztof Pytko
ID: 36817216
Yes, trust will work. If your domain(s) in the forest have no 2000 DCs, you can freely raise also FFL to 2003. It's the best choice to get two-way transitive trust between these 2 forests.
 That's new feature implemented in 2003 AD when you use FFL at 2003 level.

So, if you do not use 2000 DCs at all and do not plan to use them, raise FFL.

Before you will be able to establish trust, you need to configure DNS first. One of these options is required to get it working:
1) Define Conditional forwarders in your DNS management console for the domain from another forest
2) Create Stub zone in DNS for that zone

And of course make sure that you can reach that network from your environment :)

Krzysztof
0

Featured Post

Don't lose your head updating email signatures!

Do your end users still have the wrong email signature? Do email signature updates bore you or fill you with a sense of dread? You can make this a whole lot easier on yourself by trusting an Exclaimer email signature management solution. Over 50 million users do...so should you!

Question has a verified solution.

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

Suggested Solutions

Learn about cloud computing and its benefits for small business owners.
OfficeMate Freezes on login or does not load after login credentials are input.
This tutorial will give a an overview on how to deploy remote agents in Backup Exec 2012 to new servers. Click on the Backup Exec button in the upper left corner. From here, are global settings for the application such as connecting to a remote Back…
This tutorial will walk an individual through the steps necessary to configure their installation of BackupExec 2012 to use network shared disk space. Verify that the path to the shared storage is valid and that data can be written to that location:…

920 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

17 Experts available now in Live!

Get 1:1 Help Now