Standard guidance is at least 2 DCs from each Domain in the forest. There are a number of resources on TechNet including a detailed whitepaper that can be used as a basis for planning and testing.
Basics- http://technet.microsoft.com/en-us/library/cc771290(v=ws.10).aspx Also- http://technet.microsoft.com/en-us/library/planning-active-directory-forest-recovery(v=WS.10).aspx PSS also has a Service Delivery called ADRES(Active Directory Recovery Execution Service) if you have the resources and inclination. We had a fairly well developed and tested plan but they helped us tweak a few things. http://download.microsoft.com/documents/australia/services/datasheets2012/Active%20Directory%20Recovery%20Execution%20Service%20(ADRES).pdf From: [email protected] [mailto:[email protected]] On Behalf Of CSSU NetAdmin Sent: Tuesday, November 18, 2014 5:05 AM To: [email protected] Subject: [NTSysADM] Backing up Active Directory We are trying to figure out what we need to back up for Active Directory as part of our disaster recovery plan. Is backing up just the System State on a domain controller enough or do we need the entire server? Should all domain controllers be backed up or is one per domain OK? PG&E is committed to protecting our customers' privacy. To learn more, please visit http://www.pge.com/about/company/privacy/customer/
