What Does Tape Backup Unit (TBU) Mean?
A tape backup unit (TBU) is a unit of tape media, usually a cartridge or other similar container, that holds a specific amount of tape for backing up data. These individual units of tape are often part of a comprehensive plan to secure valuable data, often for long-term storage.
Techopedia Explains Tape Backup Unit (TBU)
One of the big benefits of a tape backup solution involves the longevity of tape media and its portability. For example, where data on a hard disk may be vulnerable to degradation over time, and where it may be hard to secure this digital data, tape backup units may be used to make secure copies that will remain in good condition for decades and can be transferred to secure vaults or other high-security areas.