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 ?
HDFS Architecture Using Dynamic Deduplication Decision Making
We have reduced our back-up times, and we're seeing a 98.9 percent deduplication rate of MEDITECH data through Data Domain.
The company's scientists revisited the model's inquiry logic to determine if a fourteen-day deduplication window remained ideal for risk prediction.
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 first thing was to evaluate the existing deduplication, which was applied during every wave, and then to determine why it had such a low match rate.
Deduplication software eliminates redundant data, enabling shorter backup windows, quicker recovery, lower infrastructure costs.
"As part of his on-boarding process, I asked our new associate to join me in an executive briefing, during which the customer said they used our data deduplication technology with VMware.
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.
A hybrid approach combining efficient data protection software with target-side deduplication can help organizations achieve the full benefits of enterprise deduplication without losing the other benefits.