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Document system and document management method

A file management method and file system technology, which is applied in the file system and file management field, can solve problems such as multiple storage spaces, complex system structures, and incompatibilities, and achieve the effects of meeting access requirements, improving access efficiency, and improving access requirements

Inactive Publication Date: 2004-08-04
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] However, these file systems are generally a general-purpose file system, which mainly considers the needs of file systems in most common cases. Its data organization structure has many advantages, but it cannot meet all requirements, especially In some specific applications, such as more special embedded applications
Moreover, the structure of these file systems is relatively complex, taking up more storage space, and the speed of accessing and searching files is slow.

Method used

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  • Document system and document management method
  • Document system and document management method

Examples

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Embodiment Construction

[0018] Please refer to figure 1 , 2 As shown, the file system of the present invention is constructed on the storage medium 5, and the storage physical area of ​​the storage medium occupied by the file system is the file system partition 1 of the file system. The storage medium 5 may be a hard disk or other storage medium 51 . The file system partition 1 may be one partition or multiple partitions of the hard disk or the entire hard disk.

[0019] The structure of the file system partition 1 is divided into three logical data areas according to the determined format:

[0020] 1) Metadata area 2, the storage area of ​​the flag data used by the file system to establish the mapping relationship from physical data to logical data, that is, the storage area containing the data contained in the file system partition 1 except for the data contained in the real file. An area of ​​flag data used to establish a mapping relationship from physical data to logical data. This area is ac...

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Abstract

A file system created on storage medium is composed of a data region for storing actual file data and a meta-data region for storing mark data used for mapping between physical data and logical data. It features that the unidirectional link table of the physical positions for the data of each actual file in the data region is stored in the meta-data region for managing the actual files according to the index address of each unidirectional link table. Its file managing method includes reading data from metal-data region to form a database file, and accessing the database file to get the index address of unidirectional link table for managing the actual files.

Description

technical field [0001] The invention relates to a file system and a file management method used in a computer system. Background technique [0002] The file system is built on the physical partition of the storage medium to store file data. The file system is an important way for the operating system to access data. When a piece of code or program accesses data stored on a disk or other storage medium, it usually submits the request to the corresponding operating system. The specific characteristics of the registered file system locate the access request to the corresponding physical location, access the corresponding actual physical data at the physical location, and assemble these data into a logical data structure according to the characteristics of the file system. At this time, the data is for In terms of upper-level applications, it is available data with specific meaning. This shows the importance of an efficient and reasonable file system for data availability. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/06G06F17/30
Inventor 张鹏
Owner LENOVO (BEIJING) CO LTD
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