Redundantly grouped cross-object coding for repairable storage

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Redundantly grouped cross-object coding for repairable storage

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Title: Redundantly grouped cross-object coding for repairable storage
Author: Datta, Anwitaman; Oggier, Frederique
Copyright year: 2012
Abstract: The problem of replenishing redundancy in erasure code based fault-tolerant storage has received a great deal of attention recently, leading to the design of several new coding techniques [3], aiming at a better repairability. In this paper, we adopt a different point of view, by proposing to code across different already encoded objects to alleviate the repair problem. We show that the addition of parity pieces - the simplest form of coding - significantly boosts repairability without sacrificing fault-tolerance for equivalent storage overhead. The simplicity of our approach as well as its reliance on time-tested techniques makes it readily deployable.
Subject: DRNTU::Engineering::Computer science and engineering::Data::Coding and information theory
Type: Conference Paper
Conference name: Asia-Pacific Workshop on Systems (2012 : Seoul, South Korea)
School: School of Physical and Mathematical SciencesSchool of Computer Engineering
Rights: © 2012 ACM. This is the author created version of a work that has been peer reviewed and accepted for publication by Proceedings of the Asia-Pacific Workshop on Systems - APSYS '12, Association for Computing Machinery. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1145/2349896.2349898].
Version: Accepted version

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