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mc3mcintyre
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Raising AD Domain Functional Level to 2012 R2

Recently, I upgraded both of our domain controllers to Windows Server 2012 R2.  Before I did that, one of them was running Windows Server 2008 R2 and the other Windows Server 2008.  Our domain is currently running at Functional Level 2003; I don't know why it wasn't at least raised to 2008.  Anyway, I'm looking for some advice and feedback about raising the functional level to 2012 R2.  What would the impact be?  Would I expect any detrimental side-effects?  Can I raise it from 2003 to 2012 R2, or do I need to take add a middle step in there and raise it first to 2008 or 2008 R2?  Any help would be appreciated.  Thanks.
Microsoft Server OSNetwork Operations

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Senior Systems Engineer

8/22/2022 - Mon
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Mahesh

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Senior Systems Engineer

Do you need to migrate FRS or SYSVOL directory to another location during the upgrade ?
Mahesh

@IT Systems Engineer,

No, Its not required

Not sure if you are talking in which context
If you are talking about FRS to DFSR sysvol migration, its not mandatory (but recommended) and that you can address later on post functional level upgrade is completed if wanted to.

Mahesh
Senior Systems Engineer

Cool, thanks Mahesh.
Your help has saved me hundreds of hours of internet surfing.
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