Windows Server Backup has advanced quite a bit in Windows Server 2008 and is proving to be a solid backup solution in several types of environments. As expected, Windows Server Backup can be configured and used via the command line through the Wbadmin.exe tool.
The Windows Server Backup tool is not installed by default on Windows Server 2008 systems. In order to install it, you must launch the Add Features Wizard from Server Manager and select both the Windows Server Backup and Command-line Tools options under the Windows Server Backup Features heading. If PowerShell is not already installed, the Add Features Wizard will automatically select and install this when you make your selections.
You can do pretty much everything from the command line version of Windows Server Backup that you can do from the graphical interface. A few common commands include:
Wbadmin start backup – Runs a one time backup
Wbadmin start recovery – Runs a recovery of volumes or files specified
Wbadmin start systemstatebackup – Performs a system state backup
You can view a list of more Wbadmin commands here:
http://technet.microsoft.com/en-us/library/cc754015(WS.10).aspx