In
storage technology, deduplication essentially refers to the elimination of
redundant
data. In the deduplication process, duplicate data is deleted, leaving
only one copy of the data to be stored. However, indexing of all data is still
retained should that data ever be required. Deduplication is able to reduce the
required storage capacity since only the unique data is stored. Deduplication is
also also written as
de-duplication, and is synonymous with
data
reduction or
commonality factoring.
