Windows Server 2008 AD的备份和还原不再和Windows Server 2000或Windows Server 2003一样备份还原System States,而是需要备份CriticalVolumes.其中包含如下文件:

　o The system volume  [This is the volume that hosts the boot files, which consists of the Bootmgr file and the Boot Configuration Data (BCD) store. ]

　o The boot volume     [This is the volume that hosts the Windows operating system and the Registry. ]

　o The volume that hosts the SYSVOL tree

　o The volume that hosts the Active Directory database (Ntds.dit)

　o The volume that hosts the Active Directory database log files

　Windows Server 2008的备份模式有如下三种:

　o Full server recovery

　o System state recovery

　o File/Folder recovery

　可以使用Bcdedit.exe这个工具来切换使用正常模式还是目录服务还原模式来启动备份工具.

　o 目录服务还原模式来启动:

　bcdedit /set safeboot dsrepair

　o 正常模式启动:

　bcdedit /deletevalue safeboot

　Windows Server 2008中包含了一个叫做Windows Server Backup的备份工具.这个工具默认是不被预安装的.需要在"Server Manager"中的"Add Features"中进行添加.添加成功后可以在管理工具中找到.

　Windows Server 2008中，System state data至少包含如下数据(视服务器上角色的多少有多不同):

　o Registry

　o COM+ Class Registration database

　o Boot files, as described earlier in this topic

　o Active Directory Certificate Services database

　o Active Directory Domain Services database

　o SYSVOL directory

　o Cluster service information

　o Microsoft Internet Information Services (IIS) metadirectory

　o System files that are under Windows Resource Protection