Magnetic disk remapping method, magnetic disk remapping device and electronic equipment

A remapping, disk technology, applied in the field of information storage, can solve the problems of bad sector area diffusion, read and write performance degradation, etc., to achieve the effect of improving reliability, ensuring read and write performance, and reducing the probability of bad sector diffusion

Active Publication Date: 2014-09-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Restoring data in bad sectors through the remapping method described above will easily lead to the proliferation of bad sector areas; in addition, when reading and writing data in bad sector areas, the magnetic head will swing back and forth, resulting in a decline in read and write performance

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  • Magnetic disk remapping method, magnetic disk remapping device and electronic equipment
  • Magnetic disk remapping method, magnetic disk remapping device and electronic equipment
  • Magnetic disk remapping method, magnetic disk remapping device and electronic equipment

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] figure 1 It is a flow chart of Embodiment 1 of the disk remapping method of the present invention. An embodiment of the present invention provides a disk remapping method, which can be executed by a disk remapping device, and the device can be integrated in a personal computer (Personal Computer, referred to as: PC), notebook computer...

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Abstract

An embodiment of the invention provides a magnetic disk remapping method, a magnetic disk remapping device and electronic equipment. The magnetic disk remapping method includes: when a bad track exists in a hot data area of a magnetic disk, adopting a redundancy mechanism of RAID (redundant array of independent disk) to recover data of the area with the bad track to a reserved area of the magnetic disk by means of remapping, and then determining a cold data area as a target area; exchanging stored data in the reserved area and the target area to enable the hot data to be accessed through a physical address of the target area. Hot data access is realized by directly accessing to the original cold data area, so that read-write performances of the magnetic disk are guaranteed; further, possibility of bad track diffusion is lowered, and reliability of a storage system is improved.

Description

technical field [0001] Embodiments of the present invention relate to information storage technology, and in particular to a disk remapping method, device and electronic equipment. Background technique [0002] Since hard disks use magnetic media to store information, hard disk bad sectors are a common problem in information storage. Among them, bad sectors include hard disk magnetic media damage and hard disk logic errors. When a member disk in a traditional redundant array of independent disks (Redundant Arrays of Inexpensive Disks, referred to as: RAID) has a bad track, the recovered data is written into the reserved area of ​​the disk through RAID technology; then, the bad track area is established to the reserved area of ​​the disk Therefore, if the bad track area is accessed later, the address remapping table will be queried first to obtain the physical address of the recovered data in the reserved area of ​​the disk, and then the data corresponding to the physical ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/06G06F3/06
CPCG06F12/06
Inventor 雷延钊何革
Owner HUAWEI TECH CO LTD
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