公开(公告)号：US12087382B2

公开(公告)日：2024-09-10

申请号：US16381581

申请日：2019-04-11

Applicant: Pure Storage, Inc.

Inventor： Matthew D. Fleming ,  John Roper ,  Hari Kannan ,  John Boyle ,  Eric Michael Verwillow ,  Nenad Miladinovic ,  Eric Mueller

IPC: G11C29/44 ,  G11C29/38

CPC classification number: G11C29/44 ,  G11C29/38

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.

公开(公告)号：US20200327953A1

公开(公告)日：2020-10-15

申请号：US16381581

申请日：2019-04-11

Applicant: Pure Storage, Inc.

Inventor： Matthew D. Fleming ,  John Roper ,  Hari Kannan ,  John Boyle ,  Eric Michael Verwillow ,  Nenad Miladinovic ,  Eric Mueller

IPC: G11C29/44 ,  G11C29/38

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.