I have two domain controllers here. One was installed as "an addition domain controller". Just to provide redundancy. My question is: How do I make this additional domain controller a global catalog server? I want to be able to use this additional domain controller in case the PDC goes down.
So far, my plan hasnt worked. I powered the PDC down and left the backup DC on. I turned on one of my clients and tried to login. It said "cannot find domain spira.com"