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Wear leveling method and system for storage space, and device

A storage space and storage device technology, applied in the storage field, can solve the problems of fragile storage, inconsistent wear times of storage blocks, etc.

Inactive Publication Date: 2018-01-09
JRD COMM (SHENZHEN) LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method, system and device for equalizing wear and tear of a storage space, so as to solve the problem that the wear times of each storage block in the storage space of the memory are inconsistent and the memory is easy to be damaged in the prior art

Method used

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  • Wear leveling method and system for storage space, and device
  • Wear leveling method and system for storage space, and device
  • Wear leveling method and system for storage space, and device

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Embodiment Construction

[0014] The invention is used to realize the wear leveling of the storage space. The controller manages and controls the storage space in the memory, so as to realize the wear leveling and optimize the storage performance of the memory.

[0015] Memory is a memory device used to save information in modern information technology. In a digital system, as long as it can store binary data, it can be a memory; in an integrated circuit, a circuit with a storage function that does not have a physical form is also called a memory, such as RAM, FIFO, etc.; Storage devices are also called memory, such as memory sticks, TF cards, etc. All information in the computer, including input raw data, computer programs, intermediate running results and final running results are stored in the memory. It deposits and retrieves information according to the location specified by the controller. With the memory, the computer has the memory function to ensure normal work. The controller is used to ma...

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Abstract

The invention discloses a wear leveling method and system for storage space, and a device. The storage space is divided into a plurality of storage blocks. The wear leveling method comprises the following steps that: establishing a storage block linked list, wherein the storage block linked list comprises the storage addresses, the erasure frequencies and the effective identification of all storage blocks, and the storage addresses, the erasure frequencies and the effective identification are mutually related; linking the storage addresses of all storage blocks in sequence according to the erasure frequencies to form a storage address data link; judging whether storage capacity in an address distributor is smaller than a threshold value or not, wherein the address distributor comprises thestorage address of a storage block to be used; and if the storage capacity in the address distributor is smaller than the threshold value, according to the storage address data link, writing the storage address which has the minimum erasure frequency and is effectively identified as an effective storage address into the address distributor. By use of the wear leveling method disclosed by the invention, the degree of wear of the storage block in the storage space can be consistent so as to prolong the service life of a memory with the storage space.

Description

technical field [0001] The present invention relates to the technical field of storage, in particular to a wear leveling method, system and device of a storage space. Background technique [0002] Computer programs, file data, etc. need to be stored in the memory. The memory is an indispensable hardware in the terminal device. How to control and manage the storage space of the memory is a very popular research field. The management of the storage space includes bad block management , logical address to physical address mapping management, etc. [0003] The storage space of the memory is getting bigger and bigger, and the requirements for storage performance are getting higher and higher. If the existing management method for the storage space is adopted, it is easy to cause unbalanced use frequency of each block of the storage space, and the more frequently used The storage block is prone to damage, causing data to be easily lost and the memory to be easily damaged. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02
Inventor 邹高向
Owner JRD COMM (SHENZHEN) LTD
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