We have a Windows Server 2003 forest that currently contains 8 domain controllers running Windows 2003 server, standard edition, sp2. Two of these controllers are our ADC and BDC that also function as our DNS and WINS servers. We also have several member servers which are a combination of Windows Server 2003, standard edition, sp2; WIndows Server 2003 R2, standard edition, sp2; Windows 2000 server, sp4.
Our Forest and domain controllers all currently run in "mixed" mode. We'd like to change the functionality level to "native" mode for all domain controllers and the forest. There are NO NT Servers in this Forest.
What, if any, problems can we expect when making this change? Any residual problems afterward?