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Relaxed erase parameters for block erasures in non-volatile storage media

  • US 10,636,493 B2
  • Filed: 06/27/2018
  • Issued: 04/28/2020
  • Est. Priority Date: 06/27/2018
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • non-volatile storage media comprising blocks of memory bits; and

    control circuitry coupled to the non-volatile storage media, wherein the control circuitry comprises;

    a counter to maintain a loop count for an erasure of a block in the non-volatile storage media;

    a comparator to determine that the loop count satisfied a threshold loop count for the erasure of the block; and

    an adjuster to relax an erase parameter for a later erasure of the block in response to the loop count having satisfied the threshold loop count for the erasure;

    wherein the block comprises segments, and wherein the adjuster, in response to the loop count having satisfied the threshold loop count for the erasure, determines that a quantity of segments unavailable for storing data satisfies a segment criteria and, in response to the quantity of segments satisfying the segment criteria, increases a data scrubbing priority for the block.

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