If you are practicing in a large firm, backups are probably something you don’t need to worry about. But if you are going it alone, or in a small firm, backups of both your system and your files are essential if you are going to keep your practice going in case of an emergency.
System failure is the most likely emergency you are going to face, but others include fire, theft or loss of equipment. In each case, there are a number of backup procedures that should be followed to allow for both recovery of data and recovery of the system state of your computer system.