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e-SAFE: An Extensible, Secure and Fault Tolerant Storage System
Cambridge, Massachussets July 09-July 11
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SASO.2007.21First International Conference on Sel ...
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Sandip Agarwala, Georgia Tech
Arnab Paul, Intel Corporation, Portland, OR
Karsten Schwan, Georgia Tech
This paper describes e-SAFE , a scalable utility-driven distributed storage system that offers very high availability at an archival scale and reduces management overhead such as periodic repairs. e-SAFE is designed to provide a storage utility for environments such as large-scale data centers in enterprise networks where the servers experience temporary unavailability (possibly high load, temporary downtimes due to repair or software/hardware upgrades). e-SAFE is based on a simple principle: efficiently sprinkle data all over a distributed storage and robustly reconstruct even when many of them are unavailable. e-SAFE also provides strong guarantee on data-integrity. The use of Fountain codes for replicating file data blocks, an efficient algorithm for fast parallel encoding and decoding over multiple file segments, a utility module for service differentiation and auto-adjustments of design parameters, and a background replication mechanism hiding the cost of replication and dissemination from the user, provide a fast, durable and autonomous storage solution.
Citation:
Sandip Agarwala, Arnab Paul, Umakishore Ramachandran, Karsten Schwan, "e-SAFE: An Extensible, Secure and Fault Tolerant Storage System," saso, pp.257-268, First International Conference on Self-Adaptive and Self-Organizing Systems (SASO 2007), 2007
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