Data backup methods

There are different methods of data backup. When creating images with Drive Snapshot, the Full backup and Differential backup methods are supported.

• With a full backup, all selected data is saved in an image each time the backup is performed.
• With a differential backup, only the data that has changed or been added since the last full backup is saved. A differential backup always requires a previously created full backup.

A regular differential backup uses less storage space than a full backup. However, restoring from a differential backup is slower, as it requires bost the most recent full backup and the corresponding differential backup.