Disk reconfiguration method based on RAID and related apparatus

A disk and priority technology, applied in the field of storage, can solve the problems of unrecoverable system, reduced system performance, and no number of business data accesses to choose a reconstruction method, so as to avoid system failures and unrecoverable problems.

Inactive Publication Date: 2015-04-22
HUAWEI TECH CO LTD
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Problems solved by technology

[0006] However, the disadvantage of streamlined reconstruction is that it is reconstructed from top to bottom according to the space order of the disk, and a reasonable reconstruction method is not selected according to the effectiveness of the business and the number of data access times.
For the area where key data of the storage system is stored, if the reconstruction fails due to disk failure or other reasons during the reconstruction process, or the data is not reconstructed in time, resulting in no redundancy in the reconstructed RAID group, the important data will be lost. , so that the data in this area cannot be recovered, which may cause an unrecoverable failure of the system. For the area frequently accessed by the host, if it is not reconstructed in time, the performance of the system will be greatly reduced

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  • Disk reconfiguration method based on RAID and related apparatus
  • Disk reconfiguration method based on RAID and related apparatus
  • Disk reconfiguration method based on RAID and related apparatus

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Embodiment Construction

[0056] The embodiment of the present invention provides a RAID-based disk reconstruction method and related equipment, which are used to preferably select disk blocks with high business priority for reconstruction during reconstruction, so that the data corresponding to the business with high business priority It can be reconstructed in time, avoiding the problem that the system fails and cannot be recovered due to the loss of key recovery data when the disk is abnormal.

[0057] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obta...

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Abstract

The invention provides a disk reconfiguration method based on a RAID and a related apparatus. The disk reconfiguration method comprises the steps that distribution of priorities is conducted on services, then the services are stored in disk blocks, due to different service priorities of the services stored in the disk blocks, when reconfiguration is conducted, the disk blocks with the higher service priorities are preferably selected to be reconfigured, data corresponding to the services with the higher service priorities can be reconfigured in time, and the problem that due to the fact that key recovery data are lost when a disk is abnormal, a system has a fault and cannot be recovered is solved.

Description

technical field [0001] The invention relates to the storage field, in particular to a RAID-based disk reconfiguration method and related equipment. Background technique [0002] RAID technology is a technology that combines multiple independent disks or hard disks to form a disk group or hard disk group, also known as a logical disk, to provide higher storage performance and data processing capabilities than a single disk. A disk group Multiple disks in the cluster are member disks. [0003] According to different combinations of disks, RAID can be divided into different levels, such as RAID0, RAID10, RAID3, RAID5, RAID6, etc. Different RAID levels provide different data protection schemes. Among them, RAID3, RAID5, and RAID6 all provide data redundancy protection function, that is, when one disk in the disk group fails (RAID6 allows 2 disks), the data of the faulty disk can be calculated through the data on the normal disk and the parity check. So as to ensure the normal...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F11/07
CPCG06F3/0629G06F11/1662
Inventor 郭利新
Owner HUAWEI TECH CO LTD
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