Concept3-2-1备份策略 / 321备份法则

3-2-1 Backup Rule

A classic strategy in data backup: maintain 3 copies of data, stored across 2 different storage media types, with 1 copy kept offsite, thereby achieving multi-layered disaster recovery protection.

Timeline (last 90 days)

Sep 12

The 3-2-1 backup rule was proposed by photographer Peter Krogh in the early 2000s.

Unverified50%

Sep 7

The 3-2-1 backup rule means keeping at least 3 copies of data, stored on 2 different types of media, with 1 copy stored offsite.

Unverified60%

All Facts (2)

Unverified

The 3-2-1 backup rule means keeping at least 3 copies of data, stored on 2 different types of media, with 1 copy stored offsite.

60%Unverified

The 3-2-1 backup rule was proposed by photographer Peter Krogh in the early 2000s.

50%

Source Articles

Backup Is Harder Than You Think: The Underestimated Engineering of Data ProtectionSep 17 Cloud Backup for Under 1TB of Critical Data: Offsite Backup Solutions ComparedSep 12 The Docker Server Backup Dilemma: Finding a 3-2-1 Solution That Actually WorksSep 12