The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2024
Filed:
Apr. 11, 2019
Pure Storage, Inc., Mountain View, CA (US);
Matthew D. Fleming, Santa Clara, CA (US);
John Roper, Mountain View, CA (US);
Hari Kannan, Sunnyvale, CA (US);
John Boyle, Palo Alto, CA (US);
Eric Michael Verwillow, Palo Alto, CA (US);
Nenad Miladinovic, Campbell, CA (US);
Eric Mueller, Palo Alto, CA (US);
PURE STORAGE, INC., Santa Clara, CA (US);
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.