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File defragmentation method, device and equipment

A file fragmentation and file technology, which is applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of long sorting time, inability to defragment, and inability to perform IO access, and achieve the effect of not damaging life.

Active Publication Date: 2016-03-02
XFUSION DIGITAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, such disk defragmentation method will bring the following problems: in the process of defragmentation, IO access can hardly be performed; It cannot be defragmented at all because there is not enough free storage space

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  • File defragmentation method, device and equipment
  • File defragmentation method, device and equipment
  • File defragmentation method, device and equipment

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Embodiment Construction

[0068] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention has been described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention covers not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments included within the spirit and scope of the invention as defined by the appended claims.

[0069] Such as figure 1 As shown, the virtualization function of the disk array in modern storage technology divides the storage space of all disks on the storage device into blocks, and then combines each disk block into a virtual volume according to a certain principle, which is presented to the user as a LUN (logical unit number , LogicalUnitNumber). figure 1 It shows...

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Abstract

The invention provides a file defragmentation method and a file defragmentation unit. The method includes the following steps: a request for reading the information of files is sent to a memory device; the information of the files sent by the memory device is received in order to obtain the distribution of the fragments of the files on the virtual volume of the memory device; the memory device is queried and the size of the virtual volume page in the memory device is obtained, and the virtual volume page is the minimum memory unit of the virtual volume; according to the distribution of the fragments of the files on the virtual volume and the size of the virtual volume page, the distribution of the fragments of the files on the virtual volume page is obtained by calculation; a file defragmentation request is sent to the memory device, so that the memory device changes the mapping relation between the disk block and the virtual volume page of the memory device according to the distribution of the fragments of the files on the virtual volume page, and therefore the files can be continuously stored on the virtual volume.

Description

technical field [0001] The present invention relates to the technical field of data storage, in particular to a file defragmentation method, device and equipment. Background technique [0002] The file system under the Windows operating system will have the problem of file fragmentation, that is, files are stored in different places on the disk, rather than being stored continuously. Fragmented files will cause the file system to use more IO (InputOutput) for read and write operations, which will obviously reduce performance and increase unnecessary CPU, IO and bandwidth overhead. [0003] Currently, disk defragmentation tools are often used to defragment, such as the built-in defragmentation tools of the Windows operating system, or other third-party disk defragmentation tools. The method of traditional disk defragmentation tools to defragment disks is to move file fragments from their original storage locations to free storage space, and rearrange scattered fragments back...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 李经纬
Owner XFUSION DIGITAL TECH CO LTD