Two of the most critically important tasks you’ll perform as an administrator are backing up and recovering Active Directory Domain Services. To perform backup and recovery, you must install Windows Server Backup, a feature available for servers running Windows Server 2008. When you install this feature using the Add Feature Wizard in Server Manager, you can run Windows Server Backup from the Administrative Tools menu and access the Wbadmin utility at a command prompt.
In Windows Server 2008, you can perform three types of backup:
A system state backup, which includes all the files that are required to recover AD DS
A critical-volumes backup, which includes ...