Okay, I've got a windows 2000 mixed mode active directory domain including four DC's running server 2000 SP4 and one member server running exchange 2003 SP2 The domain is in Mixed mode because we had some DEC Alpha servers that were running pathworks. The alpha's have been decommissioned, and are no longer in the domain. We have between 75 and 100 pcs/laptops running a mix of XP and Win7. We would like to move to Native mode and then upgrade our servers to server 2008.
My question has to do with converting from mixed to native mode. In the Active Directory Domains and Trusts snap-in, there's a button to change mode. What steps should I take (other than a full backup) prior to pushing the button? Also, since this is a one-way door, what else should I look into before making this move? Additionally, do I need to run the Change Mode script from each DC or just one?