1 min read
The 3-2-1 backup rule still works
Three copies, two media, one offsite, updated for cloud and ransomware realities.
Frameworks come and go. 3-2-1 survives because it matches failure physics.
Modern reading
- 3 copies: production + two backups
- 2 different media/systems: not two folders on one NAS
- 1 offline or immutable / offsite: away from the blast radius
Add restore tests
Copies you cannot restore are expensive rumors.
Discuss your backup design with Qutzl.