Invention Grant
- Patent Title: System and method for bank logical data remapping
- Patent Title (中): 用于存储逻辑数据重映射的系统和方法
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Application No.: US14044548Application Date: 2013-10-02
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Publication No.: US09336129B2Publication Date: 2016-05-10
- Inventor: Alan Bennett , Sergey Anatolievich Gorobets
- Applicant: Alan Bennett , Sergey Anatolievich Gorobets
- Applicant Address: US TX Plano
- Assignee: SanDisk Technologies Inc.
- Current Assignee: SanDisk Technologies Inc.
- Current Assignee Address: US TX Plano
- Agency: Brinks Gilson & Lione
- Main IPC: G06F12/02
- IPC: G06F12/02 ; G06F3/06 ; G06F12/00

Abstract:
A method and system are disclosed for remapping logical addresses between memory banks of discrete or embedded multi-bank storage device. The method may include a controller of a storage device tracking a total erase count for a storage device, determining if an erase count imbalance greater than a threshold exists between banks, and then remapping logical address ranges from the highest erase count bank to the lowest erase count bank to even out wear between the banks. The system may include a controller that may maintain a bank routing table, an erase counting mechanism and execute instructions for triggering a remapping process to remap an amount of logical addresses such that an address range is reduced for a hotter bank and increased for a colder bank.
Public/Granted literature
- US20150095546A1 SYSTEM AND METHOD FOR BANK LOGICAL DATA REMAPPING Public/Granted day:2015-04-02
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