Inline Deduplication

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What Does Inline Deduplication Mean?

Inline deduplication refers to getting rid of redundant data in a data set as that data set is being transferred from one device to another, usually in a data backup system. This process cuts down on the bulk of a data set and makes storage more efficient.

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Techopedia Explains Inline Deduplication

One way to explain how inline deduplication works is to contrast it to another major option, which is post-processing deduplication. While post-processing deduplication does the work of separating out redundant data after it has already been transferred, inline deduplication relies on processes that get in between the data origin servers and the data backup destinations, or in other words, functions during the process, rather than after. This can mean that inline deduplication can slow down data backups or otherwise impede the process; however, it also means that the final result will be already scrubbed of redundant or inefficient data.

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Margaret Rouse
Technology expert
Margaret Rouse
Technology expert

Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret’s idea of ​​a fun day is to help IT and business professionals to learn to speak each other’s highly specialized languages.