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Method and system for disk management

A management method and management system technology, applied in the field of computer storage media, can solve the problems of inability to deal with disk bad sectors in time, long disk seek time, etc., and achieve the effects of shortening the average seek distance, ensuring safety, and prolonging service life.

Inactive Publication Date: 2015-07-01
SUZHOU POWERCORE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For this reason, the technical problem to be solved by the present invention is that in the prior art, when disk management is performed, there is a long disk seek time and the defect that disk bad sectors cannot be processed in time

Method used

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  • Method and system for disk management
  • Method and system for disk management
  • Method and system for disk management

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] This embodiment provides a disk management method, such as figure 1 shown, including:

[0067] S1. Reserve a backup sector in each partition of the disk. In the process of disk partitioning, some sectors can be reserved in each partition through the HBA (host bus adapter chip) as backup sectors, and the size of the backup sectors can be configured according to requirements. The uniform distribution of the backup sectors in the disk is realized, which shortens the seek distance of the disk, and naturally reduces the seek time of the disk.

[0068] S2. Scanning each partition in the disk in turn to determine whether there is a bad track in each partition. If it exists, go to step S3. By scanning each partition in the disk sequentially, the bad track of each partition can be scanned in real time, which is beneficial to repair or deal with the bad track in time.

[0069] S3. Mark the bad track and remap it to a backup sector in the partition where the bad track is locat...

Embodiment 2

[0099] This embodiment provides a disk management system, such as image 3 shown, including:

[0100] Reserved unit 1 is used to reserve a backup sector in each partition of the disk. The uniform distribution of the backup sectors in the disk is realized, which shortens the seek distance of the disk, and naturally reduces the seek time of the disk.

[0101] The scanning unit 2 is configured to sequentially scan each partition in the disk to determine whether there is a bad track in each partition. By scanning each partition in the disk sequentially, the bad track of each partition can be scanned in real time, which is beneficial to repair or deal with the bad track in time.

[0102] The remapping unit 3 is used to mark the bad track and remap it to the backup sector in the partition where the bad track is located or the backup sector in the partition closest to the partition where the bad track is located when the bad track is scanned. in the district. By marking the bad t...

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Abstract

The invention provides a method for disk management and a system for the disk management. The method for the disk management includes the following steps: reserving a backup section in every subarea of a disk; orderly scanning every subarea in the disk, and judging if a bad track is existed in every subarea; if it is, marking the bad track and remapping to the backup section in the subarea where the bad track locates or the backup section in the subarea with the closest distance to the subarea where the bad track locates; recording the relationship of the remapping. Through distributing the backup section of the disk to every disk subarea, the mean track seeking distance is shortened, and further the track seeking time is reduced; the method and the system for the disk management can timely find out and handle the bad track of the disk, prolong the service life of the disk, and are good for ensuring the data safety.

Description

technical field [0001] The invention relates to the field of computer storage media, in particular to a disk management method and system. Background technique [0002] At present, as the main storage medium, magnetic disks are widely used in electronic products such as computers and video recorders. Google's research test shows that the failure of the disk is not directly related to the temperature of the working environment and the frequency of its use. The bad track of the disk can be said to be a fatal failure of the disk. When a disk has a track scanning error, within 60 days its The probability of breaking will increase by 39 times. Tests on 100,000 disks show that the average annual failure rate of disks in data center servers is about 6%, and most disk failures are caused by the increase in bad sectors and the serious decline in access rate. After the disk has bad sectors, not only some bad sectors are unusable, but also directly affect other usable disk sectors, c...

Claims

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Application Information

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IPC IPC(8): G06F3/06
Inventor 李晔侯锐董建波刘月吉
Owner SUZHOU POWERCORE TECH CO LTD
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