File system maintenance and repairing method and apparatus

Abstract

The present invention provides a file system maintenance and repairing method and apparatus. The file system maintenance and repairing method comprises: when it is detected that metadata in a file system has an error, determining whether the error metadata belongs to isolable metadata, wherein the isolable metadata meets a condition that the file system still can continue providing partial services after the error occurs; and when it is determined that the error metadata belongs to the isolable metadata, setting the error metadata to be read-only or inaccessible. By using the technical scheme, the error metadata can be isolated when the error metadata in the file system is the isolable metadata, while the file system continues running, so that the working continuity of the file system can be ensured, the fault tolerance capability of the system is improved, and the overall service performance is raised.

Description

technical field [0001] The invention relates to the technical field of file system management, in particular to a method and device for maintaining and repairing a file system. Background technique [0002] The file system of a computer is a method of storing and organizing computer data, which makes it easy to access and find it. The file system uses abstract logical concepts of files and tree directories instead of physical devices such as hard disks and optical disks using data blocks. concept. The file system organizes and allocates the space of the file storage device, is responsible for file storage, and protects and retrieves the stored files. In other words, the file system is a set of abstract data types that implement operations such as data storage, hierarchical organization, access, and acquisition. [0003] File system metadata is information about the organization of file data, data domains, and their relationships. In short, metadata is data about data. Th...

AI Technical Summary

Problems solved by technology

[0005] In the existing technology, since the entire file system is set as read-only, the overall performance of the business will be unavailable, and the impact of business interruption is relatively large.

At the same time, since any single metadata is damaged, the file system will be set as read-only or inaccessible. Therefore, when repairing, in order to ensure the integrity of the repair, it is necessary to scan the entire file system to find out other errors. Metadata, resulting in longer repair times

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