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A virtual disk system and file storage method based on the virtual disk system

A technology for virtual disk and file storage, used in memory systems, memory address/allocation/relocation, instruments, etc.

Active Publication Date: 2015-09-23
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, neither the file storage method nor the disk system of the prior art can meet the requirements of the prior art. Therefore, it is necessary to adopt suitable means to realize the storage of media files.

Method used

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  • A virtual disk system and file storage method based on the virtual disk system
  • A virtual disk system and file storage method based on the virtual disk system
  • A virtual disk system and file storage method based on the virtual disk system

Examples

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Embodiment 1

[0048] Aiming at the characteristics of the existing P2P files, the present invention sets a virtual disk for P2P storage to meet the requirements of reliability, high efficiency, usability, transferability, scalability and content copyright protection.

[0049] in, figure 1 It is a schematic diagram of a logical structure of the principle of the virtual disk system of the present invention;

[0050] Among them, such as figure 1 As shown, in this application, a virtual disk corresponds to an actual physical file.

[0051] The virtual disk file is divided into numerous logical blocks of equal size according to a certain size. A specific identification of the current virtual disk is stored in the virtual disk identification block of the file header, and different virtual disk files can be distinguished according to this identification. In addition, information such as a digital certificate used for media content copyright protection is also stored in the virtual disk identifi...

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Abstract

The invention discloses a virtual disk system, comprising a plurality of logical block groups, wherein each logical block group comprises a plurality of data block units for storing file content data or file metadata; a block bitmap unit for storing information whether the data block expressed in a binary bit manner is used; an index node bitmap unit for storing information whether an index node expressed in a binary bit manner is used; and an index node table unit for storing information of a plurality of index node items, wherein each index item corresponds to one file and at least stores the size of the corresponding file, the specific position of the file, and storage modification time meta-information. The virtual disk system can satisfy the requirements of the P2P (peer-to-peer) medium file storage on reliability, high efficiency, usability, mobility, expandability and content copyright protection. In addition, the invention also discloses a file storage method based on the virtual disk system.

Description

technical field [0001] The invention belongs to the field of peer-to-peer network technology, and in particular relates to a data storage method and system for storing media data in a peer-to-peer computing process. Background technique [0002] In P2P applications, in many cases, it is necessary to store the data obtained from the P2P network into the local storage of the current peer node. [0003] However, it is a comparatively complicated and difficult problem to adopt which scheme to manage and store these media data, wherein, in the prior art, for the P2P application software of video class, a kind of scheme is in host machine operating system (for example Windows , Mac) store and manage these media data based on a predefined format in a file, that is, store the contents of many media files into an actual physical file. [0004] As a result, a question arises about how to efficiently manage space, ensure high data reliability, and facilitate subsequent upgrades, maint...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/08G06F17/30G06F12/0873G06F12/109
Inventor 王峰姚键阙宏宇杨敬宇张士波潘柏宇卢述奇
Owner ALIBABA (CHINA) CO LTD
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