Hi everyone,
I recently asked about the required steps to upgrade domain functional level from 2003 to 2008R2 and I was given some great info and tips on what to expect and what to do.
However, I failed to ask what the possible recovery options are in case things go poorly. It is to my knowledge that the domain functional level is not able to be reverted to its previous state unless done so by a System State Backup and an Authoritative Restore.
I'm curious what steps I will need to take if I'm upgrading domain functional level 2003 to 2008R2 and I need to revert 2008R2 to 2003.
I've experimented in my lab with using Windows System Backup to restore a System State (and using the check box for an authoritative restore), but I'm lacking knowledge on how to restore the Domain Functional Level in addition to the System State.
Thoughts?
Thanks!