Method of operating a storage device and method of operating a data processing system including the same
A storage device and data technology, which is applied in the input/output process of data processing, electrical digital data processing, redundant data error detection in operations, etc., and can solve problems such as poor performance degradation.
Active Publication Date: 2021-12-21
SAMSUNG ELECTRONICS CO LTD
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However, the guidelines for data relocation are usually conservative because the performance degradation may become worse during data relocation
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[0033] Features and embodiments are described and shown in the drawings in terms of functional blocks, units and / or modules, as is conventional in the disclosed technical field. Those skilled in the art will recognize that these blocks, units and / or modules are physically implemented by electronic (or optical) circuitry such as logic circuits, discrete components, microprocessors, hardwired circuits, memory elements, wiring connections, etc., which It may be formed using semiconductor-based fabrication techniques or other processing techniques. Where the blocks, units, and / or modules are implemented by a microprocessor or the like, they can be programmed using software (e.g., microcode) to perform the various functions discussed herein, and they can optionally Driven by firmware and / or software. Alternatively, each block, unit, and / or module may be implemented by, or as, dedicated hardware performing some functions in combination with a processor (e.g., one or more programmed...
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A memory device includes a plurality of memory cells arranged in pages and blocks, each page including a row of memory cells and each block including multiple pages of memory cells. The storage devices include memory devices containing these items, such as non-volatile memory devices. A data recovery method for a storage device includes receiving, by the storage device, a first command corresponding to a first selected data recovery scheme. Based on the first command: applying a first target page scheme for performing error detection on the plurality of blocks; reading target pages using the first target page scheme and detecting an amount of errors in each read target page. Further, it is determined that the target page of the first block has at least a first threshold amount of errors, and based on the determination, data recovery is performed for the first block by relocating all data stored in the first block to another block. Additionally, it is determined that no read page in the second block has at least a first threshold amount of errors, as a result of maintaining the data stored in the second block.
Description
[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2015-0163604 filed on Nov. 20, 2015, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to a technique for recovering read performance degradation of a storage device, and more particularly, to a method of operating a storage device to recover performance degradation due to retention characteristics and a method of operating a data processing system including the storage device. Background technique [0004] A memory device storing data may be a volatile memory device or a non-volatile memory device. A flash memory device is an example of an electrically erasable programmable read-only memory (EEPROM), in which multiple memory cells are erased or programmed in a single programming operation. [0005] A program operation and a read operation are performed on each page,...
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IPC IPC(8): G06F11/14G06F3/06
CPCG06F3/0607G06F3/064G06F3/0679G06F11/1489G11C29/42G11C2029/0409G11C2029/0411G06F11/1068G11C29/52G06F3/061G06F3/0619G06F3/0659
Inventor 李尚勇姜信旭李澈
Owner SAMSUNG ELECTRONICS CO LTD