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Method and system for managing data of flash memory storage equipment

A flash memory storage and device data technology, applied in the direction of response error generation, redundant code error detection, etc., can solve the problems of reducing storage space, correcting errors, etc., and achieve the effect of saving storage space

Inactive Publication Date: 2011-05-18
SHENZHEN NETCOM ELECTRONICS CO LTD
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Problems solved by technology

[0007] The purpose of the present invention is to provide a data management method of a flash memory storage device, aiming to solve the problem that all data in the flash memory storage device in the prior art is corrected by using the same bit length ECC supervision code, and an additional storage space is required for important data Backups are protected, causing problems reducing the available storage space

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  • Method and system for managing data of flash memory storage equipment
  • Method and system for managing data of flash memory storage equipment
  • Method and system for managing data of flash memory storage equipment

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Embodiment Construction

[0021] In order to make the object, technical solution and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] In the embodiment of the present invention, at least two ECC supervisory codes with different bit lengths are configured in the flash memory storage device, and the storage area of ​​important data is matched with a second ECC supervisory code with a longer bit length to store data, which does not need to occupy the flash memory The extra storage space of the storage device can protect the important data by backing up the important data, saving the storage space of the storage device.

[0023] The purpose of the embodiments of the present invention is to provide a method for manag...

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Abstract

The invention is suitable for the technical field of data storage and provides a method and a system for managing data of flash memory storage equipment. The method comprises the following steps of: configuring at least two ECC (Error Correction Code) supervisor codes with different bit lengths in the flash memory storage equipment, wherein the two codes are respectively marked to be a first ECC supervisor code with an ordinary bit length and a second ECC supervisor code with a longer bit length; and selecting storage data matching with the second ECC supervisor code in a storage region of important data. In the embodiment of the invention, at least two ECC supervisor codes with different bit lengths are configured in the flash memory storage equipment and respectively marked to be the first ECC supervisor code with the ordinary bit length and the second ECC supervisor code with the longer bit length, and the storage data matching with the second ECC supervisor code is selected in the storage region of the important data, thereby data protection can be achieved without backing up protected data by occupying an extra storage space of the storage equipment, and the storage space of the storage equipment is saved.

Description

technical field [0001] The invention belongs to the technical field of data storage, and in particular relates to a data management method and system of a flash memory storage device. Background technique [0002] The application of storage devices in daily life is becoming more and more common. The flash memory storage space includes data space and redundant space. Among them, the redundant space is mainly used to store error correction code (Error Correcting Code, ECC) supervision code. Since the data space is in Bit errors will occur during reading and writing. Therefore, in the practical application of flash memory, ECC supervisory codes are stored in the redundant space to correct the bit errors generated during the reading and writing process of the data space. [0003] At present, the ECC supervisory codes used in flash memory mainly include Hamming codes, Reed-Solomon codes, Bosch-Chad Holly codes, Reed-Miller codes, two-dimensional Gray codes, convolutional codes, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/10
Inventor 卢辉伟
Owner SHENZHEN NETCOM ELECTRONICS CO LTD
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