发明授权
- 专利标题: Adaptive read scrub
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申请号: US17332727申请日: 2021-05-27
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公开(公告)号: US11513890B1公开(公告)日: 2022-11-29
- 发明人: Evgeny Mekhanik , Dudy David Avraham , Alexander Bazarsky
- 申请人: Western Digital Technologies, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Western Digital Technologies, Inc.
- 当前专利权人: Western Digital Technologies, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Patterson & Sheridan, LLP
- 代理商 Steven H. VerSteeg
- 主分类号: G06F16/2453
- IPC分类号: G06F16/2453 ; G06F16/22 ; G06F16/2455 ; G06F16/901 ; G06F9/4401 ; G06F9/50 ; H04L67/10 ; G06F3/06 ; G06F12/0893 ; G06F16/17 ; G06F11/10 ; G06F12/109 ; G06F16/23 ; G06F16/242 ; H03M7/30 ; G06F16/2457 ; G06F16/2458 ; G06F16/27 ; G06F7/24 ; G06F11/30 ; G06F11/07
摘要:
A data storage device includes a memory device and a controller coupled to the memory device. The controller is configured to receive a read command form a host device, collect environment data of the memory device, decode data associated with the read command, determine a bit error rate (BER) of the decoded data, compare the BER to a threshold, and determine whether the data associated with the read command is to be relocated. The environment data includes temperature, number of program/erase cycles, amount of grown defects, number of past relocations and time since last data relocation. The controller is further configured to dynamically adjust the threshold based on the collected environment data and an amount of time that has passed since a last relocation of the read command data.
公开/授权文献
- US20220382625A1 Adaptive Read Scrub 公开/授权日:2022-12-01