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Slice migration in a dispersed storage network

  • US 10,078,468 B2
  • Filed: 08/18/2016
  • Issued: 09/18/2018
  • Est. Priority Date: 08/18/2016
  • Status: Active Grant
First Claim
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1. A method for execution by a computing device of a dispersed storage network (DSN) that includes a processor, the method comprises:

  • receiving, by the computing device, location data corresponding to a client computing device, wherein the location data includes a home area of the client computing device and at least one of a current location and a predictive location, wherein the home area includes being within one or more of an access latency of a first plurality of storage units of the DSN, a proximity threshold to the first plurality of storage units, a geographical region, and one or more geographical boundaries, wherein the first plurality of storage units is storing at least some of a set of encoded data slices, and wherein a data segment of data is dispersed storage error encoded into the set of encoded data slices;

    determining, by the computing device and based on the location data, whether the client computing device is or is anticipated to be within the home area; and

    when the client computing device is not or is anticipated to not be within the home area;

    transferring, by the computing device, pre-fetch encoded data slices associated with the client computing device from the first plurality of dispersed storage units of the DSN that is associated with the home area of the client computing device for storage in a second plurality of dispersed storage units of the DSN that is associated with the predictive location of the client computing device, wherein the set of encoded data slices includes the pre-fetch encoded data slices.

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