Method for storing metadata of logic document system by adhesion property

A technology of logical files and storage logic, applied in the field of metadata storage, can solve the problems of complex metadata operations, difficult to achieve performance, inconvenient implementation, etc., to achieve the effect of strong adaptability and easy implementation

Inactive Publication Date: 2007-01-31
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects that the existing metadata server has relatively complex operations on metadata and needs to process all operations and sto

Method used

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  • Method for storing metadata of logic document system by adhesion property
  • Method for storing metadata of logic document system by adhesion property
  • Method for storing metadata of logic document system by adhesion property

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Embodiment Construction

[0021] The method of the present invention will be described below in conjunction with the accompanying drawings and specific embodiments.

[0022] In this embodiment, the attachment attribute refers to using the metadata of the local file system to store the metadata of the logical file system, and the metadata of the logical file system does not exist as a data block in a file of the local file system. Therefore, to operate on the metadata of files or directories in the logical file system, such operations need to be forwarded to the corresponding files or directories in the local file system with the same parameters. Such forwarding operations are implemented by implementing a file system interface at the Virtual File System (VFS) layer. Typical metadata operations include create, delete, modify attributes, rename, and query. The above-mentioned operations of the metadata are described below respectively.

[0023] 1. Create: When creating a file or directory in a logical ...

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Abstract

The invention discloses a method to use adhering attribute storing logic file system metadata. It stores the metadata of logic file system on local file system as local file system file attribute. The method includes the following steps: creating file or catalog of the logic file system; deleting a file or catalog; modifying logic file system attribute; renaming the file or catalog on logic file system; acquiring the metadata of file or catalog on logic file system. By using the method, the logic file system could directly use the metadata process function by using the local file system to inhere the stability and performance of the local file system. It also has the advantages of easy to realize and strong adaptability.

Description

technical field [0001] The invention relates to storage of metadata, in particular to a storage method of metadata in a logical file system. Background technique [0002] With the development of computing applications, the increasing data storage requirements and various data storage access modes have brought great challenges to the design of file systems. A file server is a computer that stores a large amount of file data in a centralized manner. Its file system has special requirements different from general computer systems. File servers generally have high-performance processors, a large amount of memory, and a large number of disks. In order to meet the requirements of the file server, those skilled in the art have designed a logical file system based on multiple local file systems. attached figure 1 It is a structural diagram of a typical logical file system. In this logical file system, data is stored in the storage device. The logical file system is a file system b...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 赵奕唐荣锋熊劲
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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