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Method for implementing file class mirror-image under multiple hard disk based on nude file system

A file system and file-level technology, applied in special data processing applications, instruments, electrical digital data processing, etc., to achieve the effect of simple implementation and effective management

Active Publication Date: 2008-04-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the soft RAID method described above, manual intervention is required to restore its work after a hard disk failure every time.

Method used

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  • Method for implementing file class mirror-image under multiple hard disk based on nude file system
  • Method for implementing file class mirror-image under multiple hard disk based on nude file system
  • Method for implementing file class mirror-image under multiple hard disk based on nude file system

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Embodiment Construction

[0035] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention.

[0036] Fig. 1 is the method flowchart of realizing file-level mirror image based on bare file system under the double hard disk of the embodiment of the present invention; As shown in Fig. 1, comprise the following steps:

[0037] Step S10: Formatting the two hard disks, synchronizing the system area information of the two hard disks and setting the master disk;

[0038]Step S20: when performing the write operation, simultaneously initiate the write operation of the user data on the two hard disks, and update the write pointer in the system area after the write operation is completed;

[0039] Step S30: When performing a...

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Abstract

The invention discloses a method for realizing a file-level mirror image based on a bare file system under multiple hard disks environment and a device thereof. The method comprises an initialization step for formatting a plurality of hard disks that meet the hard disk layout requirements needed for the file-level mirror image and that are synchronic with the system region information of the plurality of hard disks; a write operation step for simultaneously writing user data on the plurality of hard disks when executing write operation, and updating write points in the system region after the write operation; a read operation step for determining the hard disk with valid data according to the information recorded in the system region when executing the read operation, returning the valid data on the hard disk, and updating the read points in the system region after the read operation. The invention has simple and effective management, and is suitable for storing and accessing certain types of the data with higher requirement to the data reliability in an embedded system.

Description

technical field [0001] The invention relates to a method for improving the reliability of user data access in a multi-hard disk environment, in particular to a method and device for realizing reliable access of specific user data based on a raw file system (RawFs). Background technique [0002] The rapid development of today's information technology makes us in an era of information explosion, and the requirements for data reliability are getting higher and higher. Data is the most important asset of an enterprise. If the enterprise data is lost, business development will become extremely difficult. More importantly, the enterprise will lose the trust of customers and a series of markets on which the enterprise depends for survival and development. [0003] At present, a variety of methods have been proposed in terms of software and hardware to achieve reliable access to data as much as possible. [0004] The concept of a reliable file system is proposed from the software. ...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F17/30
Inventor 黄文伟童小九周海山
Owner ZTE CORP
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