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123 › 3-2-1 Backup Rule

COV ITRM Glossary

3-2-1 Backup Rule


fundamental backup methodology that requires at least three total copies of data:

3 includes: one live production copy and two backup copies, 2 of which are local but on different mediums/devices represents two different media/methodologies, and 1 represents a single off-site copy to support disaster recovery.

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