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Method and controller used for replying data during programmed failure, and storage system

A controller and data technology, applied in the direction of response error generation, redundant code error detection, etc., can solve the problems of irreducible size, heavy workload of RAM modules, etc., and achieve the effects of improving efficiency, saving quantity, and extending life

Active Publication Date: 2018-01-26
STORART TECHSHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The workload of the RAM module is heavy and its size cannot be reduced

Method used

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  • Method and controller used for replying data during programmed failure, and storage system
  • Method and controller used for replying data during programmed failure, and storage system
  • Method and controller used for replying data during programmed failure, and storage system

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Embodiment Construction

[0047]In order to make the purpose, technical solution and advantages of the present invention clearer, the method for restoring data when programming fails, the controller for restoring data when programming fails, and the method including all The storage system of the above-mentioned controller is further described in detail. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] see figure 1 , figure 1 It is a flowchart of a method for recovering data when programming fails according to the present invention. It should be noted that the method can be applied to solid-state drives installed in laptops or desktops, and the method can also be applied to USB flash drives as storage devices. That is, flash-based storage devices are the target of the application, and the best practice is the controller that runs the solid-state drive. The first step of the method for rec...

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PUM

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Abstract

The invention relates to a method and a method and a controller used for replying data during programmed failure, and a storage system which uses the method and the controller. The controller comprises the following main components: a parity check code generation unit, a volatility memory module and a processing unit. Through parity check codes and subdata which is successfully programmed in the volatility memory module, written data which fails in being programmed can be replied and correctly programmed. Compared with other methods used for replying the data during the programmed failure, themethod which is put forward by the invention has the advantages that storage resources are saved and the service life of the storage system is prolonged.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a method for recovering data when programming fails, a controller and a storage system. Background technique [0002] Recently, flash memory is widely used to store digital data and has many applications: flash memory chips can be integrated into solid state drives as the main components of notebook computers, or made into portable storage devices such as flash drives; a single flash memory chip It can also be packaged to form a micro SD memory card, which can be inserted into a smart phone to record data. Take solid-state drives as an example. Compared with traditional hard drives, solid-state drives have the advantages of shock resistance, small size, low heat dissipation, and fast reading and writing. Although traditional HDDs have a higher bit-to-cost ratio than SSDs, the difference between the two is narrowing. Solid state drives are replacing traditional hard drives ...

Claims

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Application Information

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IPC IPC(8): G06F11/10
Inventor 李厚鋆洪瑞徽
Owner STORART TECHSHENZHEN CO LTD