Madrid, Madrid Spain
Oct. 4, 2011 to Oct. 7, 2011
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SRDS.2011.18
Modern storage systems are employing data deduplication with increasing frequency. Often the storage systems on which these techniques are deployed contain important data, and utilize fault-tolerant hardware and software to improve the reliability of the system and reduce data loss. We suggest that data deduplication introduces inter-file relationships that may have a negative impact on the fault tolerance of such systems by creating dependencies that can increase the severity of data loss events. We present a framework composed of data analysis methods and a model of data deduplication that is useful in studying the reliability impact of data deduplication. The framework is useful for determining a deduplication strategy that is estimated to satisfy a set of reliability constraints supplied by a user.
reliability, fault tolerance, storage systems, deduplication, UDE
William H. Sanders, Pin Zhou, Nagapramod Mandagere, Sandeep M. Uttamchandani, Eric W.D. Rozier, "Modeling the Fault Tolerance Consequences of Deduplication", SRDS, 2011, Reliable Distributed Systems, IEEE Symposium on, Reliable Distributed Systems, IEEE Symposium on 2011, pp. 75-84, doi:10.1109/SRDS.2011.18