Microsoft Windows 2008 R2 gives users the ability to create native Virtual Hard Disk (VHD) files. VHD files are virtual hard disks contained in a single file. For more information about VHD files, see your Microsoft Windows documentation.
If a native VHD file is mounted to a drive letter or to an empty folder path, the file is skipped during backup jobs. You cannot include a mounted VHD as part of a selection list. To back up the data in a mounted VHD file, select its mount point in the backup selections.
You can restore native VHD files as part of any normal restore job. You can also redirect a restore job to a native VHD if you use Microsoft Windows 2008 R2. When you redirect a restore job to a native VHD, Backup Exec creates a VHD file that expands dynamically as you save data to it. The file expands until it reaches 2040 GB, which is the maximum size for a native VHD file. You can create one VHD file with data from all redirected backup sets or you can create a VHD file for each backup set.