Книга: Windows Server 2012 R2 Storage, Security, & Networking Pocket Consultant

Backing up and restoring the system state

Backing up and restoring the system state

In Windows Server 2012 R2, there are approximately 50,000 system state files, which use approximately 4 GB of disk space in the default installation of an x64-based computer. The fastest and easiest way to back up and restore a server’s system state is to use Wbadmin. With Wbadmin, you can use the START SYSTEMSTATEBACKUP command to create a backup of the system state for a computer, and the START SYSTEMSTATERECOVERY command to restore a computer’s system state.

TIP When you select a system state restore on a domain controller, you have to be in the Directory Services Restore mode. To learn how to restore Active Directory, see the next section.

To back up a server’s system state, enter the following at an elevated command prompt:

wbadmin start systemstatebackup -backupTarget: VolumeName

Here VolumeName is the storage location for the backup, such as F:.

To restore a server’s system state, enter the following at an elevated command prompt:

wbadmin start systemstaterecovery -backupTarget: VolumeName

Here VolumeName is the storage location that contains the backup you want to recover, such as F:. Additionally, you can do the following:

? Use the -recoveryTarget parameter to restore to an alternate location.

? Use the -machine parameter to specify the name of the computer to recover if the original backup location contains backups for multiple computers.

? Use the -authSysvol parameter to perform an authoritative restore of the SYSVOL.

You can also recover the system state by using a backup that includes the system state or by performing a recovery.

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