ALSO CALLED: Disk to Disk to Tape and D2D2T DEFINITION: Disk-to-disk-to-tape (D2D2T) is an approach to computer storagebackup and archiving in which data is initially copied to backup storage on a disk storage system and then periodically copied again to a tape storage system (or possibly to
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DISK-TO-DISK-TO-TAPE DEFINITION (continued): … an optical storage system). Traditionally, many businesses have done backup directly to relatively inexpensive tape systems. However, for many computer applications, it's important to have data immediately ready to be restored from a secondary disk if and when the data on the primary disk becomes inaccessible (for example, if the server fails). The time to restore data from tape would be considered unacceptable. On the other hand, tape is a more economical alternative for long-term … Disk-to-Disk-to-Tape definition sponsored by SearchStorage.com, powered by WhatIs.com an online computer dictionary
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