When you use the (-SNAPSHOTROOT) option with the BACKUP IMAGE command, SNAPSHOTROOT must specify the device name of the logical volume containing the snapshot for the backup. An example is /dev/fslv01 (on Unix) or \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1 (on Windows).
Processing is stopped.
For the correct use of the (-SNAPSHOTROOT) option, see the appropriate Backup-Archive Client Installation and User's Guide book for your operating system.