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RODC domain level 2008 to 2012r2

Hi all experts,

We have an environment with a Domain contoso.local with 2 DC’s and 1 Subdomain schools.contoso.local with 2 DC’s and 5 RODC’s. Domainlevel is 2008R2.
We want to raise the domain to 2012 r2 without update the RODC’s, only the main DC’s on contoso.local and schools.contoso.local should be 2012 R2.

What would be the correct way to achieve this?

According to Microsoft we only have to “adprep” and “domainprep” on the 4 main DC’s. rodcprep is not necessary on those 4 main DC’s or is it? Also do we have to do something on the RODC’s as well?

Thank you for your replies

BinaryBubble

SOLUTION

Toni Uranjek

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Will Szymkowski

RODC's get their replication from "other" 2008 domain controllers. They do not talk directly to 2012 R/W DC's. As stated you will only be able to raise the Domain/Forest functional level once you have removed all of the 2008 DC's this includes RODC's as well.

The /rodcprep for 2012R2 allows you to have RODC's that run 2012R2 after you have preped the domain.

Will.

Thomas U

ASKER

Hi,

we don't want to raise the DFL. We just want to replace the 2008er Domain Controller with 2012r2 (not the rodcs). Is this true, that the 2008 don't "talk" with the 2012r2, even the DFL is still 2008er?

Regards
BinaryBubble

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