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deduplication

   Also found in: Dictionary/thesaurus, Wikipedia 0.06 sec.

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.

In file deduplication, only one copy of the file is stored even though it may be referenced from many sources. For example, if the same attachment is used in several e-mail messages, the second and subsequent messages are changed to link to the original attachment rather than duplicating it each time.
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Finally, we examined the effect of each deduplication strategy for inpatients (ICU and non-ICU) at major hospitals.
Isolate removal methods and methicillin-resistant Staphylococcus ... by Effler, Paul V. / Emerging Infectious Diseases
The njiniENGINE is available now, as well as njiniENCOUNT, which uses the metadata assigned by njiniENGINE to maintain the correct number of each data object kept, whether that means replication or deduplication.
Product watch: new and notable products by Computer Technology Review
The SafetyVAULT[TM] Solution features Disk-Based Recovery Appliance from Data Domain, which employ data deduplication technology to make restore and backup functions faster and more reliable than existing solutions.
Network Backup and Recovery Solution Retains and Secures Data Locally ... by Business Wire
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