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Identifying stored data slices during a slice migration activity in a dispersed storage network

  • US 10,430,107 B2
  • Filed: 01/13/2017
  • Issued: 10/01/2019
  • Est. Priority Date: 05/29/2015
  • Status: Active Grant
First Claim
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1. A method for execution by a dispersed storage and task (DST) execution unit that includes a processor, the method comprises:

  • obtaining a first request that includes a slice name range;

    identifying at least one storage unit affiliated with the slice name range of the first request;

    issuing at least one second request to the at least one storage unit that includes a dispersed storage network (DSN) address range associated with the slice name range;

    receiving at least one first response from the at least one storage unit in response to the at least one second request, wherein the at least one first response includes a list of slice names associated with the DSN address range;

    selecting at least one selected first response from the at least one first response based on the slice name range of the first request; and

    issuing a second response to a requesting entity that includes slice names of a list of slice names included in the at least one selected first response that are associated with the slice name range of the first request, and that further includes slice names of locally stored encoded data slices that are associated with the slice name range of the first request.

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