
SynologyData Protection
A 3-2-1-1-0 Backup Plan Is Stronger Than a Single NAS Copy
A NAS can be an important backup target, but one box is not a complete recovery strategy. Synology’s guidance starts with 3-2-1—three copies, on two media, one off-site—and extends business protection with isolated or immutable copies and recovery testing.
July 16, 2026
1 min read
