3-2-1

adjective

Following the mnemonic "3-2-1 rule" for data archiving and protection: three copies of a piece of data are created, using two different types of media, and one is stored offsite.

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Meanings

adjective3-2-1 (not comparable)

alternative 3+2+1

  1. not comparablerelationalcomputingFollowing the mnemonic "3-2-1 rule" for data archiving and protection: three copies of a piece of data are created, using two different types of media, and one is stored offsite.

    3-2-1 backup

Cite this entry
APA

3-2-1. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/3-2-1

MLA

“3-2-1.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/3-2-1. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “3-2-1,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/3-2-1.

Source: 3-2-1 on Wiktionary, CC BY-SA 4.0.