On the Delay-Storage Trade-Off in Content Download From Coded Distributed Storage Systems

In this paper, the authors study how coding in distributed storage reduces expected downloads time, in addition to providing reliability against disk failures. The expected download time is reduced because when a content file is encoded to add redundancy and distributed across multiple disks, reading only a subset of the disks is sufficient to reconstruct the content. For the same total storage used, coding exploits the diversity in storage better than simple replication, and hence gives faster download.

Provided by: Institute of Electrical & Electronic Engineers Topic: Storage Date Added: Dec 2013 Format: PDF

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