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 ?
De-duplication has been around for a while as a tool used by the IT backup team, though it hasn't always been deployed to accomplish information governance and compliance goals.
All this comes without loosing any benefits like global smart de-duplication and compression.
De-duplication is expected to play a major role in the storage market because it lets companies reduce the amount of disk space they need in their data centres.
Multi-user global deployment and configuration application featuring hierarchical, policy-driven configuration to significantly reduce deployment time -- Patent pending source-side global de-duplication across the entire ESX farm to greatly reduce LAN traffic and disk space usage -- Multi-user file-level restore for instant access to compressed data -- Built-in incremental replication which can replicate newly changed blocks and inject them directly to into the replicated virtual machine -- Date-smart dynamic export with pre-defined date-based directories, providing critical flexibility in deciding what data is exported to a choice of tape or disk
The advantages of using data de-duplication technology are extensive.
Reducing disk capacity needs by 20:1 or more is where de-duplication technology changes the game: all the benefits of disk-based backup and archive can be achieved with significantly less disk capacity and at a cost similar to tape.
For example, Melissa Data offers multiple options for cleaning up existing databases through the use of postal service databases, de-duplication programs, and telephone records.
Also remember to allow time for ordering your primary mailing list and running the de-duplication process.
International address management supplier Capscan has announced the launching of its new de-duplication product, MatchManager, at this year's Call Centre Expo (stand C46).
Control options include de-duplication, logical grouping, stamping options and spot-checking a preview of the production set before submitting the job to Fios.
LAS VEGAS -- Tributary Systems announced today the native attachment of the HP StoreOnce D2D De-duplication solution to HP NonStop Systems.
Paul PHA has also experienced unprecedented storage efficiency on its production data from Tegile's inline data de-duplication and compression technologies.