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Data recovery method and device of flash memory of data storage type

A flash memory and data technology, which is applied in the field of data recovery of data storage flash memory, can solve the problems of low security and poor stability of data storage flash memory, and achieve the effect of low resource overhead

Active Publication Date: 2018-02-16
YEESTOR MICROELECTRONICS CO LTD +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a data recovery method, device, and computer-readable storage medium for data storage flash memory, aiming to solve the problem of data storage flash memory failure caused by restoring invalid data when data is damaged and invalidated in the current data storage flash memory. The problem of poor stability and low security

Method used

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  • Data recovery method and device of flash memory of data storage type
  • Data recovery method and device of flash memory of data storage type
  • Data recovery method and device of flash memory of data storage type

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Embodiment Construction

[0055] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0056] refer to figure 1 , figure 1 It is a schematic structural diagram of a data recovery device for a data storage type flash memory in a hardware operating environment involved in the solution of the embodiment of the present invention.

[0057] like figure 1 As shown, the device for recovering data from a data storage flash memory may include: a processor 1001 , such as a CPU, a user interface 1002 , a solid state storage device 1003 , a memory 1004 , and a communication bus 1005 . Wherein, the user interface 1002 may be connected to include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the user interface 1002 may also include a standard wired interface and a wireless interface. The memory 1004 may be a stable memory (non-volatile memory), and may include EEPROM (Elect...

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Abstract

The invention discloses a data recovery method and device of a flash memory of a data storage type. According to the method, target physical-blocks in the flash memory of the data storage type are setto an abstract model with n abstract pages; a checking information page is selected from the n abstract pages, and a physical checking code is set for the checking information page; and data recoveryis carried out on a to-be-recovered abstract page, of which valid data are lost, according to the physical checking code of the checking information page when the to-be-recovered abstract page appears in the abstract model. According to the method, data which are invalid due to data destruction can be recovered for a case where the flash memory of the data storage type cooperates with a buffer with a lower resource overhead, and not impacting stability and security of work of the flash memory of the data storage type can be guaranteed while data recovery is carried out.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a data recovery method and device for data storage flash memory. Background technique [0002] At present, the storage media of solid-state storage devices (such as solid-state drives) are basically data storage memory chips Nand flash. Due to data storage memory chips, there are negative aspects such as data retention, read disturbance and wear. Factors may cause the data of the solid-state storage device to be damaged, that is, the data of a certain physical page may be lost. [0003] In the working process of the whole life cycle of the solid-state storage device, the operation of writing data to the data-storage memory chip (that is, Program, commonly known as programming), may write data to a physical page Page of the data-storage memory chip. , a data write error may occur. [0004] For example, some platform differences of eMMC (Embedded Multi Media Card, embedded memor...

Claims

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Application Information

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IPC IPC(8): G06F11/14
CPCG06F11/1469
Inventor 余云锋吴大畏李晓强
Owner YEESTOR MICROELECTRONICS CO LTD
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