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COV ITRM Glossary

123

3-2-1 Backup Rule

Definition

(Context: Technology Management)


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 representing two different media/methods, and 1 represents a single off-site copy supporting disaster recovery (DR).


Reference:

EA-Solution-Data-Availability-Requirements.pdf (virginia.gov)


See Also:

COV ITRM Glossary › D › Disaster Recovery Planning | Virginia IT Agency

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