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Generating time-ordered globally unique revision numbers

  • US 10,489,247 B2
  • Filed: 12/04/2017
  • Issued: 11/26/2019
  • Est. Priority Date: 12/31/2014
  • Status: Active Grant
First Claim
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1. A method for execution by processing units of one or more computing devices of a dispersed storage network (DSN), the method comprises:

  • receiving, by two or more of the processing units, a data object for storage in a plurality of storage vaults, wherein the plurality of storage vaults includes two or more storage vaults for the data object;

    for each storage vault of the plurality of storage vaults, encoding the data object in accordance with dispersal parameters of the storage vault to produce a corresponding plurality of sets of encoded data slices;

    generating, by each processing unit of the two or more of the processing units, a unique revision number to associate with the data object, wherein the unique revision number is a time-ordered globally unique revision number;

    for each storage vault, each processing unit of the two or more of the processing units facilitating storage of the corresponding plurality of sets of encoded data slices with the unique revision number; and

    facilitating, by at least one of the two or more of the processing units, data synchronization between the plurality of storage vaults based on the unique revision number of a stored data object.

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