System and method responsive to a rate of change of a performance parameter of a memory
First Claim
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1. A method comprising:
- determining a rate of change of a performance parameter of a region of a memory, wherein the rate of change is a largest slope of a line of multiple lines, wherein each of the multiple lines is determined based on two or more performance parameter measurements that are associated with the region of the memory;
comparing the rate of change to a threshold; and
performing an action in response to determining that the rate of change satisfies the threshold.
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Abstract
Systems and methods are disclosed that are responsive to a rate of change of a performance parameter of a memory. In a particular embodiment, a rate of change of a performance parameter of a non-volatile memory is determined. The rate of change is compared to a threshold, and an action is performed in response to determining that the rate of change satisfies the threshold.
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Citations
38 Claims
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1. A method comprising:
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determining a rate of change of a performance parameter of a region of a memory, wherein the rate of change is a largest slope of a line of multiple lines, wherein each of the multiple lines is determined based on two or more performance parameter measurements that are associated with the region of the memory; comparing the rate of change to a threshold; and performing an action in response to determining that the rate of change satisfies the threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 34)
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22. A method comprising:
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comparing a rate of change of a performance parameter of a memory to an adjustable threshold, wherein the rate of change is a largest slope of a line of multiple lines, wherein each of the multiple lines is determined based on two or more performance parameter measurements that are associated with a region of the memory; and modifying the adjustable threshold in response to a number of comparisons of the rate of change of the performance parameter satisfying the adjustable threshold. - View Dependent Claims (23, 24)
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25. A method comprising:
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performing a comparison of a rate of change of a performance parameter of a region of a memory to a threshold, wherein the rate of change is a largest slope of a line of multiple lines, wherein each of the multiple lines is determined based on two or more performance parameter measurements that are associated with the region of the memory; and selectively identifying the region as a non-used region based on a result of the comparison. - View Dependent Claims (26, 27)
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28. A data storage device comprising:
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a controller; and a memory array including a plurality of regions; wherein the controller is configured to selectively identify at least one region of the plurality of regions as a non-used region based on a rate of change of a performance parameter of the at least one region, wherein the rate of change is a largest slope of a line of multiple lines, wherein each of the multiple lines is determined based on two or more performance parameter measurements that are associated with the at least one region of the memory. - View Dependent Claims (29, 30, 31, 32, 33)
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35. A method comprising:
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determining a rate of change of a performance parameter of a region of a memory, wherein the rate of change is a slope of a regression line determined based on multiple performance parameter measurements that are associated with the region of the memory; comparing the rate of change to a threshold; and performing an action in response to determining that the rate of change satisfies the threshold.
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36. A method comprising:
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comparing a rate of change of a performance parameter of a memory to an adjustable threshold, wherein the rate of change is a slope of a regression line determined based on multiple performance parameter measurements that are associated with a region of the memory; and modifying the adjustable threshold in response to a number of comparisons of the rate of change of the performance parameter satisfying the adjustable threshold.
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37. A method comprising:
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performing a comparison of a rate of change of a performance parameter of a region of a memory to a threshold, wherein the rate of change is a slope of a regression line determined based on multiple performance parameter measurements that are associated with the region of the memory; and selectively identifying the region as a non-used region based on a result of the comparison.
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38. A data storage device comprising:
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a controller; and a memory including a plurality of regions; wherein the controller is configured to selectively identify at least one region of the plurality of regions as a non-used region based on a rate of change of a performance parameter of the at least one region, wherein the rate of change is a slope of a regression line determined based on multiple performance parameter measurements that are associated with the region of the memory.
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Specification