Solved

Will adding a 2012 server as a Domain Controller in a 2008 Domain raise the domian function to 2012?

Posted on 2015-01-26
4
167 Views
Last Modified: 2015-01-27
We have a domain that is currently 2008 servers as domain controllers.  We are ready to set up Server 2012 DCs.  We have added the role to a 2012 server, but have not promoted it just yet.

We are at step 11 of this tutorial http://www.petenetlive.com/KB/Article/0000680.htm.

My question is will allowing the wizard to prep the forest, schema and domain going to raise the function level to 2012 or will it remain at 2008?
0
Comment
Question by:aksealife
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 53

Assisted Solution

by:Will Szymkowski
Will Szymkowski earned 167 total points
ID: 40571383
Adding the 2012 domain controller will not raise the functional level. This is a manual operation. You will only be able to raise the functional level once you have removed all of the 2008 domain controllers and there are only 2012 DC in your environment.

Will.
0
 

Author Comment

by:aksealife
ID: 40571414
This was our thinking as well.  We had a nasty experience when we went from 2003 to 2008 and just needed a little reassurance that out thinking was correct.
0
 
LVL 17

Accepted Solution

by:
Learnctx earned 166 total points
ID: 40571456
The only change will be a schema update for 2012 domain controllers (functional level will never increase without manual intervention). This would have been the same as when you started adding 2008 servers to your 2003 domain. The process is more hardy these days though and it is very rare that there would be a problem. In 2012 when you promote your first 2012 DC it will automatically apply the schema upgrade. Always have a backup and rollback strategy in place though :)
0
 
LVL 96

Assisted Solution

by:Lee W, MVP
Lee W, MVP earned 167 total points
ID: 40571953
Agree - Forest and Domain Functional levels never automatically increase.  They may be automatically set at the creation of a new domain from scratch, but adding a newer DC to an existing domain does not raise their levels.  The preps MUST be run because the newer DCs expect the AD to contain certain fields in certain areas - old DCs will simply ignore them.  And if the functional levels aren't high enough, even though the DCs want the fields to be present, they won't allow SOME of them to be used until ALL DCs reach a level that can provide necessary services.
0

Featured Post

Optimize your web performance

What's in the eBook?
- Full list of reasons for poor performance
- Ultimate measures to speed things up
- Primary web monitoring types
- KPIs you should be monitoring in order to increase your ROI

Question has a verified solution.

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

Auditing domain password hashes is a commonly overlooked but critical requirement to ensuring secure passwords practices are followed. Methods exist to extract hashes directly for a live domain however this article describes a process to extract u…
Microsoft Office 365 is a subscriptions based service which includes services like Exchange Online and Skype for business Online. These services integrate with Microsoft's online version of Active Directory called Azure Active Directory.
To efficiently enable the rotation of USB drives for backups, storage pools need to be created. This way no matter which USB drive is installed, the backups will successfully write without any administrative intervention. Multiple USB devices need t…
This tutorial will walk an individual through the process of installing of Data Protection Manager on a server running Windows Server 2012 R2, including the prerequisites. Microsoft .Net 3.5 is required. To install this feature, go to Server Manager…

626 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