4e9fe054_Implementing_a_backup_strategy_able_1___BACKUP_DEVICE_OPTIONS_Target_backup_device
[Advantages] Easy Very fast Files not lost if master drive crashes or becomes unbootable. [Disadvantages] Backup not completely isolated from possibility of infection by malware (1) Additional cost if drive does not already exist (2) [Target backup device] 
Other internal drive in stand-alone PC
Implementing a backup strategy
Target backup device