I have around 60 AD running 2003 R2 and only 1 is hosting the FSMOS and is running 2003 R2 as well.
I have now another 60 AD running 2008 R2 that are going to replace the ones with 2003, so my question is:
What would happen if i raise the forest and domain functional levels to 2008 with my 2003 AD servers? and what would be the correct path of doing this upgrade, transfer FSMO first ? then raise forest and domain?