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Recovering data from microslices in a dispersed storage network

  • US 10,387,250 B2
  • Filed: 01/04/2017
  • Issued: 08/20/2019
  • Est. Priority Date: 01/31/2014
  • Status: Expired due to Fees
First Claim
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1. A method comprises:

  • dispersed storage error encoding, by a computing device of a dispersed storage network (DSN), a data segment into a plurality of encoded micro slices in accordance with micro slice encoding parameters that include a micro slice width number and a micro slice decode threshold number, wherein the micro slice decode threshold number of encoded micro slices of the plurality of encoded micro slices is needed to recover the data segment;

    arranging, by the computing device, the plurality of encoded micro slices into a set of meta slices in accordance with meta slice encoding parameters that include a meta slice width number and a meta slice decode threshold number and wherein the meta slice decode threshold number of encoded meta slices of the set of meta slices is needed to recover the micro slice decode threshold number of encoded micro slices; and

    sending, by the computing device, the set of encoded meta slices to a set of storage units of the DSN.

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