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File Recipe Compression in Data Deduplication Systems

Authors: 

Dirk Meister, André Brinkmann, and Tim Süß, Johannes Gutenberg University Mainz

Abstract: 

Data deduplication systems discover and exploit redundancies between different data blocks. The most common approach divides data into chunks and identifies redundancies via fingerprints. The file content can be rebuilt by combining the chunk fingerprints which a restored sequentially in a file recipe. The corresponding file recipe data can occupy a significant fraction of the total disk space, especially if the deduplication ratio is very high. We propose a combination of efficient and scalable compression schemes to shrink the file recipes’ size. A trace-based simulation shows that these methods can compress file recipes by up to 93%.

Dirk Meister, Johannes Gutenberg University Mainz

Andre Brinkmann, Johannes Gutenberg University Mainz

Tim Süß, Johannes Gutenberg University Mainz

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BibTeX
@inproceedings {180736,
author = {Dirk Meister and Andre Brinkmann and Tim S{\"u}{\ss}},
title = {File Recipe Compression in Data Deduplication Systems},
booktitle = {11th USENIX Conference on File and Storage Technologies (FAST 13)},
year = {2013},
isbn = {978-1-931971-99-7},
address = {San Jose, CA},
pages = {175--182},
url = {https://www.usenix.org/conference/fast13/technical-sessions/presentation/meister},
publisher = {USENIX Association},
month = feb
}
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