3-2-1

Fetched 2026-10-26 (cache).

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Adjective

1. {{lb|en|relational|computing}} Following the [[mnemonic]] "3-2-1 rule" for [[data]] [[archive|archiving]] and protection: three [[copy|copies]] of a piece of data are created, using two different types of media, and one is stored [[offsite]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.