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Read-source requests to support bundled writes in a distributed storage system

  • US 10,423,490 B2
  • Filed: 12/06/2017
  • Issued: 09/24/2019
  • Est. Priority Date: 01/30/2015
  • Status: Active Grant
First Claim
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1. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises:

  • identifying a stored data object for retrieval from a dispersed storage network (DSN), wherein the stored data object is stored at least partially as a bundled write;

    determining a DSN address that corresponds to the stored data object;

    generating a read source request based on the DSN address, wherein the read source request includes a common source name;

    identifying a set of storage units of the DSN, wherein one or more storage units of the set of storage units are associated with the common source name;

    sending the read source request to the identified set of storage units to retrieve encoded data slices associated with the common source name;

    receiving the retrieved encoded data slices from at least some of the storage units of the identified set of storage units, wherein each storage unit that receives the read source request returns all stored encoded data slices with a source name that matches the common source name provided in the read source request; and

    disperse storage error decoding, for each set of the encoded data slices, a decode threshold number of received encoded data slices to produce a recovered data object.

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