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US Patent 12087382 Adaptive threshold for bad flash memory blocks

Patent 12087382 was granted and assigned to Pure Storage on September, 2024 by the United States Patent and Trademark Office.

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 US Patent 12087382 Adaptive threshold for bad flash memory blocks

Article

Patent abstract

A method of tracking flash memory in a storage system is provided. The method includes initializing a bad blocks threshold value and marking one or more planes or logical unit numbers (LUNs) of flash memory as bad, responsive to determining that bad blocks in the one or more planes or LUNs meet the bad blocks threshold value. The method includes adjusting the bad blocks threshold value, responsive to exceeding a threshold number or rate of retiring planes or LUNs of flash memory, and repeating the marking and the adjusting, with the bad blocks threshold value capped at a maximum threshold value.

Infobox
Is a
Patent
Patent
0
Patent Applicant
Pure Storage
Pure Storage
0
Current Assignee
Pure Storage
Pure Storage
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
120873820
Patent Inventor Names
Eric Michael Verwillow0
Eric Mueller0
Hari Kannan0
John Boyle0
John Roper0
Matthew D. Fleming0
Nenad Miladinovic0
Date of Patent
September 10, 2024
0
Patent Application Number
163815810
Date Filed
April 11, 2019
0
Patent Citations
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Patent Primary Examiner
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Albert Decady
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CPC Code
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G06F 11/1072
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G11C 29/52
0
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G11C 29/50
0
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G11C 29/44
0
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G11C 29/38
0
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G11C 29/02
0
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G06F 2201/81
0

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