Method for prolonging Flash abrasion life, control device and storage system
A wear life, relational table technology, applied in the memory system, memory architecture access/allocation, data processing input/output process, etc., can solve the problem of ignoring CBE information and other problems, achieve broad application prospects, delay damage speed, and improve wear and tear effect of life
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[0048] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0049] Such as image 3 As shown, the embodiment of the present invention discloses a method based on the original bit error rate RBER and the corrected bit error number CBE to improve the wear life of Flash, by adjusting the read level threshold and the update frequency of matching data and the Endurance wear of Flash. To achieve the purpose of prolonging the life of the Flash. On the one hand, this method is: collect the original bit error rate of different Page / Block on each Flash chip, compare the RBER with the historical data, and when it increases to a certain level, start the algorithm for adjusting the threshold value of the Page / Block read level, thereby Lower the RBER. Since the read level threshold affects RBER in turn, forming a closed-loop feedback mechanism, it is said that adjusting the read level threshold through RBER is a fe...
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