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 ?
Primary goal of the hybrid cloud approach is to solve the problem of deduplication with differential privileges in cloud computing.
This is due to StorageCraft s backup approach and ExaGrid writing backups direct to disk and then performing adaptive data deduplication.
With inline data reduction, storage savings from deduplication and compression are realized immediately while increasing effective capacity and reducing costs.
Violin Memory Inc (NYSE:VMEM), a provider of all-flash storage arrays and appliances delivering application solutions for the enterprise, announced on Tuesday the immediate worldwide availability of its data deduplication and compression capabilities on the Concerto 2200 solution.
Inline Data Deduplication Compression (IDDC) - ActiveImage Protector is the first backup product to offer software based inline deduplication.
Data deduplication works by replacing multiple copies of identical files or file system blocksby pointers to a single version.
The company's patented byte-level data deduplication technology reduces the amount of disk space needed by a range of 10:1 to as high as 50:1, or more, resulting in a cost that's comparable to traditional tape-based backup.
Deduplication software eliminates redundant data, enabling shorter backup windows, quicker recovery, lower infrastructure costs.
Progressive Deduplication Is Content-Aware Arkeia's progressive deduplication is based on advanced algorithms that constitute a major advance beyond fixed-block and variable-block deduplication.
Source-side deduplication is ideally suited to these environments provided the deduplication processing doesn't burden the host's shared resources," stated Lauren Whitehouse, senior analyst at Enterprise Strategy Group.
Deduplication appliances have absolutely made the transition from experimental to mainstream.
Symantec is moving deduplication closer to information sources by integrating the technology into its information management platforms: NetBackup, Backup Exec and Enterprise Vault, and centrally managing native deduplication as well as third-party deduplication appliances.