We had an extended power outage the other day, where the battery backup on the servers ran out and everything shut down. That’s not great, because you always want to have at least one DC up and running at all times. But there were many other problems after the power outage, and I finally tracked them down. DFSR, SYSVOL, and NETLOGON were not running correctly on the 2012 servers, causing them not to be domain controllers anymore, so the only DC was the old 2008 R2 one that was on the road to being decommissioned. After much researching, I found some links that explained how to get it all working again.

http://blogs.technet.com/b/filecab/archive/2012/07/23/understanding-dfsr-dirty-unexpected-shutdown-recovery.aspx

http://jorgequestforknowledge.wordpress.com/2010/08/12/restoring-the-sysvol-non-authoritatively-when-either-using-ntfrs-or-dfs-r-part-3/

http://support.microsoft.com/kb/947022

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Posted in Windows 2012 Windows Server by Scott Schrantz No Comments Yet