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
Cloud backup has its advantages, but the technology may not always be the right fit for your organization. On-premises backup still has a place in ...continue reading
Hyper-converged architectures let users scale easily by adding nodes as needed, but it's important to be aware of vendor- and hypervisor-specific ...continue reading
Virtual desktop infrastructure environments are complex and have to work with many variables. A hyper-converged infrastructure can reduce costs and ...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.