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Prioritized deleting of slices stored in a dispersed storage network

  • US 8,984,371 B2
  • Filed: 06/16/2014
  • Issued: 03/17/2015
  • Est. Priority Date: 06/06/2011
  • Status: Expired due to Fees
First Claim
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1. A method for execution by one or more computing devices of a dispersed storage network (DSN), the method comprises:

  • as a plurality of data objects is ingested, determining, for each data object of at least some of the plurality of data objects, a priority indicator to produce a listing of priority indicators corresponding to the at least some of the plurality of data objects;

    for a data object of the at least some of the plurality of data objects;

    determining dispersed storage error encoding parameters based on a corresponding priority indicator of the listing of priority indicators;

    dispersed storage error encoding the data object in accordance with the dispersed storage error encoding parameters to produce a plurality of sets of encoded data slices; and

    facilitating storage of the plurality of sets of encoded data slices in memory of the DSN;

    identifying a first data object of the at least some of the plurality of data objects for analysis based on a corresponding priority indicator of the first data object and an analysis priority;

    dispersed storage error decoding a first plurality of sets of encoded data slices to recover the first data object;

    analyzing the recovered first data object in accordance with analysis criteria to determine relevancy of the first data object; and

    when the relevancy of the recovered first data object is below a threshold, issuing a command to delete the first plurality of sets of encoded data slices.

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