I have a parent child domain with about 450 users. We have approximately 14 security groups and two shares. We also have approximately 4 GP's redirecting MyDocuments, mapping the shares, and applying settings. It's not an extremely complicated setup.
The current Active Directory is at leat 6 or 7 years old maybe more. I'd like to get some opinions on what is best and the pros and cons of either. Should I build a completely new forest, domain, etc. or should I just bring up new servers and import everything from the current domain? I am concerned about bringing over any problems from the current active directory. I inherited the network in 2004 and I do not know what occured before then. We also lost an Exchange server about 2 years ago that had to be forcefully deleted from the Domain. The current domain has four physical servers all with Microsoft Server 2003 and one running Exchange 2003.
I purchased three new physical servers and a EMC SAN with the intension to redo everything going Virtual with ESXi VMware. The hardware is now setup with the EMC VNX SAN and ESXi on the servers ready to go. We will be running several virtual Windows 2008 servers and Exchange 2010.
Start clean or migrating? What are the concerns about migration? Opinions?