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Fixed size extents for variable size deduplication segments

  • US 10,552,040 B2
  • Filed: 09/05/2017
  • Issued: 02/04/2020
  • Est. Priority Date: 03/08/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a data stream at an interface;

    segmenting at least a portion of the data stream to generate a plurality of variable size segments including a first segment;

    determining whether the first segment is maintained in storage;

    identifying a predetermined size value for a fixed size extent;

    determining a first number of fixed sized extents in the storage needed to maintain the first segment in view of the predetermined size value; and

    maintaining the first segment in a plurality of fixed size extents in the storage,wherein after the first segment is deleted, the plurality of fixed size extents in the storage used to maintain the now deleted first segment are used to maintain at least one portion of a new segment.

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