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 ?
html) has chosen to include Bacula System's Deduplication Volumes feature into their Unified Storage System appliance offering: WBSAirback[sup.
Data deduplication is designed to eliminate duplicate copies of repeated data.
While the integration of Exanet technology is expected in the second half of this year, the inclusion of Ocarina deduplication and compression technology is likely to be complete by next year, Sanders said.
A new mid-range deduplication storage system will be available soon from information infrastructure solutions provider EMC Corporation (NYSE:EMC), the company said today.
CommVault also reports that more than 350 organizations are using its embedded software deduplication to reduce the footprint of long-term vaulting or compliance copies by up to 90 percent.
Inline Deduplication Compression (IDC) - AIP is the first backup product to offer software based inline deduplication.
In this live CEO interview and webinar, attendees will have the opportunity to learn from two deduplication veterans about why all data reduction technologies are not the same; what questions they should ask their suppliers; and how they can put their organization in the best position to leverage an end-to-end data reduction strategy.
CRUNCH deduplication helps DPM storage managers extend the life of their in-place disk hardware with optional data compression further reducing capacity requirements.
The NDX-8d NAS appliance incorporates Quanum's DXi array deduplication software, which typically offers a 20:1 deduplication ratio, meaning that the software typically removes 20 copies for every one original file, Quantum said.
Deduplication is in high demand among storage administrators as the amount of raw data they are asked to keep in storage escalates.
According to the company, Adaptive Deduplication is a data reduction scheme that is integrated with the Unitrends backup appliance.
New Deduplication Features for EMC NetWorkerA Backup Software