Hardware fault-oriented method and device for correcting faults in key files of system

Abstract

The invention discloses a hardware fault-oriented method and a hardware fault-oriented device for correcting faults in key files of a system. The method comprises the following steps: (1), establishing a backup file table which contains information of the key files of the system, establishing a copy file for each target file of the backup file table and maintaining synchronization of the copy files and the target files; (2), detecting file operation fault of an operating system in real time and diagnosing the reason of the fault, when the file confronting the operation fault is the target file corresponding to the backup file table and the fault is caused by hardware fault of a storage system, carrying out next step; and (3), replacing the file encountering the operation fault with the corresponding copy file and trying to operate the file again. The device comprises a copy file managing module, a fault detecting module, a fault diagnosing module and a fault processing module. According to the method and the device, the problem of system down or service crash caused by file access failure can be prevented; and the method and the device have the advantages of good fault tolerance characteristic, high robustness, real-time fault recovery, transparency to user, strong expandability and good commonality.

Description

technical field [0001] The invention relates to the field of high-reliability computer systems, in particular to a real-time and dynamic correction method for key system files facing hardware failures in high-end servers. Background technique [0002] With the continuous increase of storage device capacity, the probability of storage device failure is getting higher and higher, which is a huge challenge for computer users, especially high-end server users. In order to cope with the increasing failure rate of storage devices, hardware manufacturers, including some system software providers, have provided many measures, such as: building redundant disk arrays, etc., but in any case, no matter what measures are taken, it cannot be avoided Occurrence of storage device failure. [0003] The failure of the storage device has a huge impact on the upper system software and application software. For example, when the storage device fails and the key files of the operating system can...

AI Technical Summary

Problems solved by technology

[0003] The failure of the storage device has a huge impact on the upper system software and application software. For example, when the storage device fails and the key files of the operating system cannot be accessed, it will lead to system crash and data loss. What I would like to see, especially for large servers, the downtime of the system will lead to huge losses; when the storage device fails, causing the key files of the application to be damaged and inaccessible, it may cause the application to exit incorrectly, if The application is providing important services to the outside world, which will cause service interruption, cause adverse effects to users, and cause heavy losses to service providers

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