Backup depth refers to the number of successive versions of a dataset that a company chooses to keep over time.

This strategy allows for the restoration of data from different points in time, enabling the recovery of previous versions in case of data corruption, accidental deletion, or malicious attack.

The choice of backup depth is important with respect to risk coverage, business continuity, and potentially regulatory aspects.

This backup depth has a significant impact on the overall amount of data backed up.