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Data storage system with dynamic erase block grouping mechanism and method of operation thereof

  • US 9,431,113 B2
  • Filed: 07/17/2014
  • Issued: 08/30/2016
  • Est. Priority Date: 08/07/2013
  • Status: Active Grant
First Claim
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1. A method of operation of a data storage system comprising:

  • maintaining metadata for each erase block of a plurality of erase blocks in the data storage system, wherein a respective metadata for a respective erase block includes one or more characteristics of the respective erase block;

    allocating a set of erase blocks, of the plurality of erase blocks, as unassociated erase blocks;

    selecting two or more unassociated erase blocks in accordance with characteristics of the unassociated erase blocks so as to select unassociated erase blocks with similar characteristics, wherein the selecting includes enforcing a minimum amount of dwell time for the unassociated erase blocks, wherein dwell time is the amount of time between operations on a respective erase block; and

    grouping the two or more unassociated erase blocks with similar characteristics to form a super block.

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