Please help – Schema/RID master is unavailable and cannot connect to it via ntdsutil

active-directorydomain-controllerschemawindows-server-2008-r2

I am in serious need of help.

I had of 2 domain controllers and one currently went down last night indefinitely. I have one DC holding up the entire domain. Kinda in a panic. Our servers are running on 2008r2. The Domain controller that went down is the current schema master and RID master. I cant find any documentation on how to seize roles when a server is dead/offline. I am hoping to seize all roles to the one last remaining domain controller and rebuild the second and transfer roles back.
Has anyone experienced this type of issue?

Best Answer

This TechNet article goes into great detail about how to sieze the roles.

Don't panic, the domain can function with both if those roles offline for a fairly long amount of time. Don't rush the recovery process because you're nervous. I would promote a new DC first, so that you have two in your domain, then worry about seizing the roles.

In addition to the seizure of roles, you will also need to clean up the failed DC's metadata in AD. See this Technet article for that procedure as well. You can do this after the promotion of a replacement DC and the role seizure process, so it's OK to do this last. It's important, but not as critical as the other two procedures.

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