arXiv (Cornell University) · 2012 · 13 citations · 6 references
ComputingComputer EngineeringComputer ScienceFault ToleranceFault-tolerant ComputingFault-tolerant SystemsCoding TheoryData RedundancyError-correcting CodesFault-tolerant Storage SystemsReliable Storage SystemsStorage Fault ToleranceBandwidthCode ConstructionsCode OptimalityDistributed Storage ArchitecturesDistributed Storage CodesDistributed Storage ReliabilityRegenerating CodesRepair Bandwidth
We study the exact and optimal repair of multiple failures in codes for distributed storage. More particularly, we provide an explicit construction of exact minimum bandwidth coordinated regenerating codes (MBCR) for n=d+t,k,d >= k,t >= 1. Our construction differs from existing constructions by allowing both t>1 (i.e., repair of multiple failures) and d>k (i.e., contacting more than k devices during repair).
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Cooperative Regenerating Codes for Distributed Storage Systems
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