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Primary array data dedup/compression using block backup statistics

  • US 10,565,068 B1
  • Filed: 04/19/2017
  • Issued: 02/18/2020
  • Est. Priority Date: 04/19/2017
  • Status: Active Grant
First Claim
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1. A method comprising:

  • in a data storage system comprising a primary storage array with managed drives and a first storage virtualization storage array that maintains a first virtualized managed drive, where the first storage virtualization storage array has a first storage capability that the primary storage array lacks;

    quantifying, for each extent of data of a plurality of extents of data, suitability for processing of that extent of data by the first storage capability;

    selecting a most suitable extent of data based on quantified suitability; and

    moving the selected most suitable extent of data to the first virtualized managed drive.

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