deduplication

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deduplication

(1) A method for compressing data by storing only changes to the original data. For example, when a document is created, it is stored as a regular, complete file. When changes are made, deduplication stores only the data that has been modified in a subsequent file with indexes to the original. The changes may be identified by bytes or blocks. See backup types.

(2) To remove duplicate records from a file or duplicate files in various storage locations.
References in periodicals archive ?
In general the data de-duplication is accomplished by splitting the input data into minor fragments and chunking the fragments, using data de-duplication algorithm the redundant data is detected and further duplication process is continued.
The de-duplication method presented in this article was previously described in a brief conference paper [9].
the contract is for supply of equipment for de-duplication and backup storage, which consists of:
The addition of expansion shelves, combined with our advanced data de-duplication and compression technologies, offers customers a simple, affordable and scalable way to manage data protection," Atkinson added.
Many IT departments have begun augmenting unreliable tape backup technology with de-duplication applications to reduce storage costs and get more life from the tape.
4Gid developed and deployed the UIDAI's first proof of concept (PoC) to define the technical, operational, and behavioral processes related to enrolments and to benchmark the quality parameters and accuracy levels necessary for de-duplication of all residents of India.
All this comes without loosing any benefits like global smart de-duplication and compression.
They enable you to manage that, together with de-duplication and disk to disk backup.
The Petroleum Ministry said the de-duplication process and the online authentication that the UIDAI offers will enhance the efficiency of oil companies in delivering services to the increasing customer base.
According to the company, the contract calls for the consolidation and de-duplication of existing database of 82m citizen demographic details with iris codes of 56m citizens.
EMC has scored another victory over storage rival NetApp by purchasing Data Domain, a merger which widens the technological gap between the companies in the fast-growing data de-duplication market.
The new product features a multi-user global deployment and configuration application, advanced block-and-file-level backup and the industry's only patent-pending source-side global data de-duplication across the entire ESX farm.