To select the data to back up
Selecting a check box for a machine means backing up all the machine's disks. To select individual disks and/or volumes, expand the machine item and select check boxes next to the disks and/or volumes.
Notes for physical machines, their disks and volumes
Notes for virtual machines, their disks and volumes
For more information about backing up virtual machines see "Backing up virtual machines".
For more information, see the following sections: