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Optimize data protection layouts based on distributed flash wear leveling

  • US 9,672,905 B1
  • Filed: 10/12/2016
  • Issued: 06/06/2017
  • Est. Priority Date: 07/22/2016
  • Status: Active Grant
First Claim
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1. A storage system, comprising:

  • a plurality of storage nodes having solid-state memory, each storage node of the plurality of storage nodes configurable to write data across the plurality of storage nodes using erasure coding, each portion of data having a plurality of data bits and one or more parity bits; and

    each storage node of the plurality of storage nodes configurable to identify portions of the solid-state memory having a first access rate and portions of the solid state memory having a second access rate, the first access rate faster than the second access rate; and

    each storage node of the plurality of storage nodes configurable to write the data bits to the portions of the solid-state memory having the first access rate and write the one or more parity bits to the portions of the solid-state memory having the second access rate.

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