Device and method for regulating interface access of plurality of file systems on same disk partition

A file system and disk partition technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as writing conflicts in multiple file systems, and achieve the effects of ensuring exclusivity, avoiding data conflicts, and resolving data conflicts

Inactive Publication Date: 2012-04-18
HITACHI LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0010] The purpose of the present invention is to solve the technical obstacle that multiple file systems in one partition can be used together, especially for the solution to the write conflict of multiple file systems

Method used

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  • Device and method for regulating interface access of plurality of file systems on same disk partition
  • Device and method for regulating interface access of plurality of file systems on same disk partition
  • Device and method for regulating interface access of plurality of file systems on same disk partition

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Embodiment Construction

[0029] A first embodiment of the present invention will be described below with reference to the drawings.

[0030] figure 2 It is a schematic structural diagram of the system described in this embodiment.

[0031] The bottom layer in the figure is the disk partition 207, which is a part of the entire physical disk medium. Based on the disk partition is the disk device driver 206. The function of the device driver layer is to drive the physical disk to work through instructions, so that the disk can correctly implement operations such as reading, writing, and erasing. The file system layer is based on the disk driver layer, and uses the disk access interface provided by the disk driver layer to operate the underlying disk. The role of the file system layer is to convert abstract files into specific disk data organized in a specific way. In the system described in this article, there are 2 different file systems. The so-called differences here are mainly reflected in:

[...

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Abstract

The invention provides a device and a method for regulating interface access of a plurality of file systems on the same disk partition. A plurality of file systems comprise a first file system and at least one second file system, wherein the first file system is a file system positioned on a kernel layer; and the second file system is a file system positioned on a user layer. The regulating device is provided with a synchronization module for coordinating the operation of each file system on the disk partition. When any one of the file systems is used, the following operations of a detection step, an allowance step, a protection step and a synchronization step are carried out by the synchronization module. The invention effectively solves the problem of data contention which is possibly generated when a plurality of file systems simultaneously work.

Description

technical field [0001] The invention relates to a multiple file system interface access adjustment device and method on the same disk partition. Background technique [0002] The file system is a software system for file management and file storage attached to the media storage medium. In the actual system, it is generally located between the operating system and the application program. It is the basis for the application program to realize various file operations, and it is also a bridge for communicating abstract files and actual hardware storage units. In almost all computer systems today, the file system is widely used. As long as an operating system is installed on a computer system, a file system must also be installed on the system. [0003] In a general system, there is a one-to-one correspondence between the file system and the disk partitions, that is, each partition has its own file system, and all the data content on this partition is processed according to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 藤井由纪夫东嶋重树顾锦华王鸿鸣
Owner HITACHI LTD
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