I have a single Domain forest with three DCs 2003 functional. Need to migrate to AD 2012 R2.
DC01 is Domain Naming, PDC, RID
DC02 is Schema, Infrastructure
DC03 no FSMO but see problem 1 below.
Problem 1 = DC03 is hosting Exchange 2007. It has no FSMO roles. What is the best way to fix this before proceeding? Do I migrate (and upgrade) current exchange 2007 to 2013 on another server, or Demote current exchange server?
Ok, after that problem is fixed, what are next steps?
Your answer needs to assume I have three 2012 R2 member servers, without any configuration whatsoever on them.
Your answer needs to be specific as to what server I need to run what command:
DC01, DC02, DC03 are current 2003 AD DCs
DC04, DC05, DC06 are the 2012 R2 (currently member servers)