Fractional Repetition Codes for Repair in Distributed Storage Systems

The authors introduce a new class of exact Minimum-Bandwidth Regenerating (MBR) codes for distributed storage systems, characterized by a low-complexity uncoded repair process that can tolerate multiple node failures. These codes consist of the concatenation of two components: An outer MDS code followed by an inner repetition code. They refer to the inner code as a Fractional Repetition code since it consists of splitting the data of each node into several packets and storing multiple replicas of each on different nodes in the system.

Provided by: University of California Topic: Storage Date Added: Oct 2010 Format: PDF

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