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Distributive video interactive system and its data recording and accessing method

A distributed video and on-demand system technology, applied in the field of data storage and access, can solve the problem of low utilization of storage space, achieve reorganization and recovery, improve storage efficiency, and improve reliability

Inactive Publication Date: 2004-02-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the disadvantage of low utilization rate of storage space caused by multiple copies of data streams in distributed buffer servers in existing distributed video-on-demand systems

Method used

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  • Distributive video interactive system and its data recording and accessing method
  • Distributive video interactive system and its data recording and accessing method
  • Distributive video interactive system and its data recording and accessing method

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Embodiment Construction

[0029] An embodiment of the present invention will be illustrated below with reference to the accompanying drawings.

[0030] figure 1 It is an embodiment of the distributed video-on-demand system provided by the present invention. In the following description, assume that the video-on-demand system client 10 sends a data request from the index server 50 through the communication network 20, and the data files are evenly stored on N (N is a natural number) secondary servers 60 (the present embodiment is based on a two-level structure , so the cache server is called the secondary server). The user's request is first processed at the index server 50 to find the distribution of the requested data in N secondary servers 60, and then the multiple secondary servers 60 send the requested data to the client 10 through the communication network 20, The client terminal 10 completes the data reassembly process.

[0031] The index server 50 holds a plurality of catalog tables. One rec...

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Abstract

The present invention discloses a distribution type of audience-choose-broadcasting video system and its data storing and accessing method. Said storing method includes the following steps: dividing a data file into data blocks in a predetermined manner; forming a data checking block for calculating the data blocks having predetermined number; storing the said data blocks and the data checking block into a plurality of predetermined buffer-server in turn in a predetermined manner; and creating corresponding index information for storing data blocks in each said buffer-server. The technical solution of the invention can improve storing efficiency and save a lot of storing space; and increase the safety of data because adopting the distribution type of memory and the data are distributed among a plurality of buffer-server.

Description

technical field [0001] The invention relates to a distributed video-on-demand system, in particular to data storage and access. Background technique [0002] Data storage is a key technology involved in video on demand system. In the distributed video-on-demand system, there are very special requirements for data storage. Since the demand for data storage space in the video-on-demand system is very large, how to improve the utilization rate of the storage space in the distributed video-on-demand system becomes a very difficult problem. [0003] In a conventional distributed video-on-demand system, such as using the method described in US Patent 5649196 (Distributedstorage management system having a cache server and method therefor), the distributed method is based on a geographical division, in order to allow all If all video servers share one or some data streams that need to be buffered, the data must be copied to all buffer servers, which means that there are multiple c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/00G06F17/00H04N7/173
Inventor 夏建洲刘湘宇王华王怿忻张建强李加周李喜欣温央央
Owner ZTE CORP
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