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Linear Exact-Repair Construction of Hybrid MSR Codes in Distributed Storage Systems

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jul 2014Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Communications Letters, volume 18, pages 1,095-1,098 (issn: 1089-7798,

Authors: Chen Yuan; Songtao Liang; Haibin Kan;

doi: 10.1109/lcomm.2014.2323309

Linear Exact-Repair Construction of Hybrid MSR Codes in Distributed Storage Systems

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Abstract

An [n, k, d]-hybrid minimum storage regenerating (HMSR) codes is one class of minimum storage regenerating (MSR) codes where each storage node stores two symbols in a distributed storage system (DSS). Due to the ability of reducing repair bandwidth and minimizing disk I/O cost, HMSR codes are proper to be used in practice. In this letter, we prove that there exists no linear exact-repair HMSR codes when k ≥ 5. A construction of [6,3,4]-HMSR codes is devised in F 2 . Focused on [4,2,3]-HMSR codes, a repair-by-transfer construction and the corresponding regenerating algorithm are proposed.

Related Organizations

Fudan University
China (People's Republic of)
Fudan University
China (People's Republic of)

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Fields of Science (3) View all

engineering and technology

electrical engineering, electronic engineering, information engineering

Fields of Science

engineering and technology

electrical engineering, electronic engineering, information engineering

View all