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File system inspection method and system, electronic equipment and medium

A file inspection and file system technology, applied in the direction of file system, file system function, file system type, etc., can solve the problem that the consistency of the file system cannot be guaranteed

Pending Publication Date: 2022-04-15
UCLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Skipping log checks does not guarantee filesystem consistency

Method used

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  • File system inspection method and system, electronic equipment and medium
  • File system inspection method and system, electronic equipment and medium
  • File system inspection method and system, electronic equipment and medium

Examples

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Embodiment Construction

[0020] The present application will be further described below in combination with specific embodiments and accompanying drawings. It should be understood that the illustrative embodiments of the present disclosure include but are not limited to methods, systems, electronic devices and media for file system checking, and the specific embodiments described here are only for explaining the present application, rather than for the purposes of the present application. limited. In addition, for the convenience of description, only some but not all structures or processes related to the present application are shown in the drawings.

[0021] The implementation of the present application will be described by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Although the description of the present application will be introduced in conjunction wi...

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Abstract

The invention discloses a file system checking method and system, electronic equipment and a medium, and the method comprises the steps: receiving a request for writing data into a first position of a disk when a file system is subjected to file checking; and writing the data into a second position of the write cache. According to the method, the final position of the written data is transferred from the disk to the cache, when the file system is checked online, the log does not need to be skipped to check the file system, meanwhile, the file system can be checked under the condition that user data is not influenced, and the exception of the file system can be found in time.

Description

technical field [0001] The invention relates to data storage technology, in particular to a file system checking method, system, electronic equipment and medium. Background technique [0002] Journaling is a technique for guaranteeing atomicity and durability in file systems. The smallest unit of disk reading and writing is a sector, and the reading and writing of a sector is atomic. When the file system system modifies metadata, the size of a sector will exceed the size of a sector, and the atomicity can be guaranteed through logs. Data can be written to the log first, and then flushed to the target location on the disk at an appropriate time. [0003] In order to ensure the reliability of the computer data storage system, it is necessary to check the consistency of the file system. When checking the file system at runtime, the read data must be read-only, because the modified metadata is in the log, so the log needs to be skipped during the check. Checking that skips th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/172G06F16/17G06F16/18
CPCG06F16/172G06F16/1734G06F16/1815
Inventor 王宏辉
Owner UCLOUD TECH CO LTD
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