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Backup
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===Staging=== Sometimes backups are copied to a [[Disk staging|staging]] disk before being copied to tape.<ref name="PrestonBackup07-02" /> This process is sometimes referred to as D2D2T, an acronym for [[Disk-to-disk-to-tape]]. It can be useful if there is a problem matching the speed of the final destination device with the source device, as is frequently faced in network-based backup systems. It can also serve as a centralized location for applying other data manipulation techniques.
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