Raising domain functional level from 2003 to 2008R2

I've removed our final 2003 DC, all our DCs are 2008R2, and they've been running fine with no errors.

We're also running Exchange 2010.

I'm getting ready to raise our domain and forest functional level from 2003 to 2008R2. Are there any hidden gotchas or traps? Anything else I should know about?
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Manikandan NarayanswamySecurity Specialist & IBM Security GuardiumCommented:

If they are no 2003 Domain controllers in the AD forest you can raise the funtional level. However refer the below links before upgrading the Functional levels


Dirk MareSystems Engineer (Acting IT Manager)Commented:
Do domain functional level first and then forest functional level..

After you raised the functional levels you would need to either reboot all the domain controllers or restart the KDC service on each domain controller in your environment.

Restating KDC in your location where your Exchange servers are located, restart KDC one at a time to prevent downtime to your Exchange.


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