Repair locality from a combinatorial perspective

  title={Repair locality from a combinatorial perspective},
  author={Anyu Wang and Zhifang Zhang},
  journal={2014 IEEE International Symposium on Information Theory},
Repair locality is a desirable property for erasure codes in distributed storage systems. Recently, different structures of local repair groups have been proposed in the definitions of repair locality. In this paper, the concept of regenerating set is introduced to characterize the local repair groups. A definition of locality r(δ-1) (i.e., locality r with repair tolerance δ - 1) under the most general structure of regenerating sets is given. All previously studied locality notions turn out to… CONTINUE READING
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