Reliability Impact of Data Deduplication Techniques

Konferenz: ARCS 2015 - 28th International Conference on Architecture of Computing Systems
24.03.2015 - 27.03.2015 in Porto, Portugal

Tagungsband: ARCS 2015

Seiten: 7Sprache: EnglischTyp: PDF

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Sobe, Peter (Dresden University of Applied Sciences, Faculty of Computer Science and Mathematics, Germany)

Data deduplication is applied in storage systems that have to operate efficiently in terms of space consumption and cost. In addition, fault tolerance techniques are widely applied to guarantee high reliability. This paper addresses this situation by a study of the impact of data deduplication on the storage system reliability. The central question is, whether data deduplication influences the reliability at all, and if it does, how can it be quantified. First, the impact of data deduplication on reliability is shown for several specific application scenarios. Second, the influence of deduplication on fault tolerance techniques is studied. It is shown that both techniques provide synergy effects when applied in a coordinated way.