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METHOD AND APPARATUS FOR DISTRIBUTED STORAGE INTEGRITY PROCESSING

  • US 20110029809A1
  • Filed: 04/26/2010
  • Published: 02/03/2011
  • Est. Priority Date: 07/30/2009
  • Status: Active Grant
First Claim
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1. A storage integrity processing unit in a dispersed storage network, comprises:

  • a network interface for interfacing with a plurality of storage units in the distributed storage network; and

    a grid module including;

    a rebuild agent operably coupled to;

    receive an identification of an identified data slice that requires rebuilding from a corresponding one of the plurality of storage units, wherein the identified data slice is one of a plurality of encoded data slices generated from a data segment using an error encoding dispersal function; and

    retrieve at least a number T of the plurality of encoded data slices from the plurality of storage units, wherein the number T corresponds to a number of the plurality of encoded data slices needed to reconstruct the data segment based on the error encoding dispersal function; and

    a rebuild module operably coupled to reconstruct the data segment from at least the number T of the plurality of encoded data slices to produce a reconstructed data segment; and

    generate a rebuilt encoded data slice corresponding to the identified data slice from the reconstructed data segment using the error encoding dispersal function.

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