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Distributed data rebuilding

  • US 10,169,123 B2
  • Filed: 11/17/2017
  • Issued: 01/01/2019
  • Est. Priority Date: 01/30/2015
  • Status: Active Grant
First Claim
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1. A method for use in a distributed storage network (DSN) storing sets of encoded data slices in sets of storage units, the method comprising:

  • identifying, by a first storage unit included in a set of storage units, a storage error associated with an encoded data slice of a set of encoded data slices, the encoded data slice assigned to be stored in the first storage unit;

    selecting a second storage unit to generate a rebuilt encoded data slice to replace the encoded data slice assigned to be stored in the first storage unit;

    transmitting, from the first storage unit to the second storage unit, a rebuild request associated with the storage error;

    generating, by the second storage unit, the rebuilt encoded data slice in response to the rebuild request;

    transmitting the rebuilt encoded data slice from the second storage unit to the first storage unit; and

    storing the rebuilt encoded data slice in the first storage unit.

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