English to Chinese Tech/Engineering IT (Information Technology) Data Deduping

A de-duping product that could identify that 25 KB of new data and store it without the rest of the baggage could save lots of disk space. Extend that concept so that duplicate data, such as the 550-KB attachment that's in 20 users' .PST files, can be eliminated, and you could achieve staggering data-reduction factors. One group of such solutions are the data de-duping backup targets pioneered by Data Domain. These devices {look to} a backup application like a VTL (virtual tape library) or NAS device. They take their data from the backup app and do their de-duplication magic on it transparently.
注：These devices 指data de-duping backup targets。