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Retrieving data from a dispersed storage network in accordance with a retrieval threshold

  • US 8,448,044 B2
  • Filed: 04/29/2011
  • Issued: 05/21/2013
  • Est. Priority Date: 05/19/2010
  • Status: Active Grant
First Claim
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1. A method comprises:

  • determining a retrieval threshold for retrieving a set of encoded data slices from a dispersed storage network (DSN), wherein the set of encoded data slices represents data encoded using a dispersed storage error encoding function having a pillar width of “

    n”

    , a decode threshold of “

    k”

    , and an encoding ratio of n−

    k>

    k and wherein the retrieval threshold is in accordance with the encoding ratio;

    issuing data retrieval requests to the DSN for the set of encoded data slices;

    receiving encoded data slices of the set of encoded data slices to produce received encoded data slices; and

    when a number of received encoded data slices compares favorably to the retrieval threshold, decoding the received encoded data slices to recapture the data.

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