Understanding the 3-2-1 Backup Strategy for Business Data
The 3-2-1 strategy helps reduce data-loss risk from hardware failures, human error, and ransomware.
September 9, 2026
The 3-2-1 principle means keeping three copies of data, using two different media types, and storing one copy offsite. It should be paired with regular restore testing because an untested backup may fail when it is needed most.