What is Data Backup?

Data backup refers to making copies of data so that these additional copies may be used to restore the original after a data loss event. These additional copies are typically called “backups.” Backups are useful primarily for two purposes. The first is to restore a state following a disaster (called disaster recovery). The second is to restore small numbers of files after they have been accidentally deleted or corrupted.

Related terms: Continuous Data Protection, Near-line backup, Off-line backup, Online backup, Off-site vault


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