When performing an Active Directory backup, what needs to be backed up, and should you back up all domain controllers?
Active Directory backups do not typically require organizations to back up every domain controller. Domain controllers replicate the Active Directory database to each domain controller in the domain. As such, the domain controllers within a domain can be thought of as being more or less equal.
The domain controllers that should be backed up depend on an organization's Active Directory structure. As a best practice, organizations should back up domain controllers that host Flexible Single Master Operations roles, as well as at least one domain controller that acts as a DNS server.
When backing up Active Directory in larger organizations, back up at least one domain controller in each domain. It might also prove beneficial to back up domain controllers that are acting as bridgehead servers for Active Directory sites, but doing so is not an absolute requirement.
Dig Deeper on Backup and recovery software
Related Q&A from Brien Posey
Deploying Windows 10 devices can be a pain, especially when pre-installed PCs don't have the right applications or policies. Learn how Windows ... Continue Reading
Multi-cloud data backup is taking off as organizations seek ways to further protect their workloads. With many threats out there, it's important to ... Continue Reading
A disaster recovery plan that uses orchestration can simplify the process of failing VMs over to the cloud. Unfortunately, there are some caveats to ... Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.