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3-2-1 Backup Rule
A data and risk management strategy recommending 3 copies of data, 2 different storage types, and 1 offsite copy — also applied conceptually in portfolio redundancy planning.
What is 3-2-1 Backup Rule?
A data and risk management strategy recommending 3 copies of data, 2 different storage types, and 1 offsite copy — also applied conceptually in portfolio redundancy planning.
About this page. Written by Associate Professor Charles Lo, CPA, PhD. Checked against reliable sources before publication. No ads and no paywall. Editorial standards · How we fact check · Corrections log · Report an error
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