Flash memory programming failure processing method and system and storage medium

A programming failure, flash memory technology, applied in the direction of redundant code error detection, response error generation, etc., can solve problems such as programming failure, and achieve the effect of reducing data movement and reducing the probability of traffic congestion

Pending Publication Date: 2022-07-01
ALIBABA (CHINA) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Flash memory is known to experience physical imperfections that cause programming to fail

Method used

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  • Flash memory programming failure processing method and system and storage medium
  • Flash memory programming failure processing method and system and storage medium
  • Flash memory programming failure processing method and system and storage medium

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] The technical solutions provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0031] It should be noted that the same reference numerals refer to the same object in the following figures and examples, so once an object is defined in one figure...

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PUM

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Abstract

The embodiment of the invention provides a flash memory programming failure processing method and system and a storage medium. In the embodiment of the invention, when programming fails in the process of writing the to-be-written data into the flash memory, the to-be-written data continues to be written into the original physical address; counting the number of bits failed in programming; and when the number of the bits failed in programming is smaller than or equal to the set number threshold value, the data of the bits failed in programming is recovered by utilizing the data of the bits successfully programmed and a redundancy check algorithm adopted when the data to be written is stored in the flash memory, and a write command in an original write message queue does not need to be revoked, and a new physical address does not need to be redistributed, so that the writing efficiency is improved. The mapping relation between the logic address and the physical address of the to-be-written data can be kept unchanged, data movement of write operation processing when flash memory programming fails can be reduced, and the probability of flow congestion of a computing system can be reduced.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular, to a method, system and storage medium for processing a flash memory programming failure. Background technique [0002] The proliferation of the Internet and e-commerce has generated vast amounts of data. Numerous storage systems and servers have been created in the art to store and access data. A storage system or server may include volatile memory (eg, dynamic random access memory (DRAM)) and multiple storage drives (eg, solid state drives (SSD), etc.). The storage drive may include non-volatile memory (such as NAND flash or flash memory, etc.) for persistent storage. Storage in a server plays a key role in the performance and capacity of a storage system. [0003] Storage drives typically utilize internal data buffers as write caches to reduce write latency. When the host write command reaches the data buffer inside the storage drive, the storage drive imm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/10
CPCG06F11/1056G06F11/1064G06F11/1068
Inventor 李舒
Owner ALIBABA (CHINA) CO LTD
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