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Single disk fault repairing method, system and device and storage medium

A repair method and a technology for repairing a system, applied in the field of repair methods, systems, equipment and storage media for single disk failures, can solve the problems of reducing the reliability of RAID6 storage systems, long data recovery time for single disk failures, and the number of disk read operations Multiple problems, to achieve the effect of reducing data recovery time, reducing the number of disk read operations, and improving reliability

Active Publication Date: 2021-01-22
SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a single disk failure occurs, both check codes in HoVer coding can be used to recover data blocks from a single disk failure. Using a horizontal check chain or only using a diagonal check chain to recover data blocks will result in more disk read operations, which will make the data recovery time for a single disk failure longer and reduce the RAID6 storage system. reliability

Method used

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  • Single disk fault repairing method, system and device and storage medium
  • Single disk fault repairing method, system and device and storage medium
  • Single disk fault repairing method, system and device and storage medium

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Embodiment Construction

[0051] The core of the invention is to provide a repair method for a single disk failure, which effectively reduces the data recovery time of a single disk failure, thereby improving the reliability of the storage system.

[0052] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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.

[0053] Please refer to figure 1 , figure 1 It is an implementation flowchart of a method for repairing a single disk failure in the present invention, and the method for repairing a singl...

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Abstract

The invention discloses a single disk fault repairing method, which comprises the following steps of: after determining of: enabling a single disk fault to occur in a storage system based on Hover coding, selecting (r-1) / 2 data blocks from (r+1) data blocks of a faulty disk as a first type of data blocks according to a preset rule, and selecting the rest (r+1) / 2+1 data blocks as a second type of data blocks; repairing each data block in the first type of data blocks by utilizing the row check set; repairing each data block in the second type of data blocks by utilizing the diagonal check set;and when any data block is repaired and the data block needing to be used is located in the memory, reading the data block from the memory. By applying the scheme of the invention, the data recovery time of a single disk fault is effectively reduced, so that the reliability of the storage system is improved. The invention further discloses a system and device for repairing the single-disk fault and a storage medium, and the corresponding effects are achieved.

Description

technical field [0001] The invention relates to the technical field of fault recovery, in particular to a single disk fault recovery method, system, equipment and storage medium. Background technique [0002] Currently, there is an ever-increasing demand for reliability and availability of data storage. However, with the continuous expansion of storage system scale and the widespread adoption of cheap storage devices, the probability of failures in current storage systems continues to increase. Therefore, fault-tolerant technologies are usually used in storage systems to ensure reliable storage of data. When a disk fails, the storage system can use fault-tolerant technology to read a certain amount of data from the surviving disk and reconstruct the lost data in the failed disk. During the fault repair process, the amount of data read from the surviving disk directly affects the reliability of the system and the service performance requested by the user. Therefore, how to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1446Y02D10/00
Inventor 黄萍王凛吴睿振吴艳
Owner SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD
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