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Network-based data storage method

A data storage and network technology, applied in the field of network storage, can solve the problems of poor retrieval performance, large amount of I/O operations, fixed encoding format, etc., and achieve the effect of fast and accurate retrieval and stable storage

Inactive Publication Date: 2015-07-01
CHENGDU YINGTAI SCI & TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

All the above architectures provide good system support for video surveillance. However, the stability and clarity of video storage is an important guarantee for the quality of surveillance. At present, the storage of video surveillance systems usually has the following deficiencies: the encoding format is relatively fixed; The system adopts a data storage mode based on multi-level pointers, which has problems such as large I / O operations and easy storage fragmentation when storing frame data, resulting in low video storage efficiency and poor retrieval performance, which has become a bottleneck for system performance and scale improvement

Method used

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Embodiment Construction

[0023] The following and accompanying appendices illustrating the principles of the invention Figure 1 A detailed description of one or more embodiments of the invention is provided together. The invention is described in connection with such embodiments, but the invention is not limited to any embodiment. The scope of the invention is limited only by the claims and the invention encompasses numerous alternatives, modifications and equivalents. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. These details are provided for the purpose of example and the invention may be practiced according to the claims without some or all of these specific details.

[0024] One aspect of the present invention provides a network-based data storage method. figure 1 It is a flowchart of a network-based data storage method according to an embodiment of the present invention.

[0025] The video monitor...

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Abstract

The invention provides a network-based data storage method which includes the steps: designing a video frame coding and video frame storage process into two processes, and building two memory sharing areas for caching according to paths predefined by the two processes; creating a file pool comprising initial null files with specified sizes, distributing a group of clusters with fixed sizes in a continuous physical space, and scheduling storage among a plurality of storage devices based on accessed frequency and the residual space of the storage devices; recording a file index table of each file information by a preset time unit, and retrieving a video file. The network-based data storage method realizes stable storage and rapid accurate retrieval under high data volume, and has practicability and reliability.

Description

technical field [0001] The invention relates to network storage, in particular to a video data storage method. Background technique [0002] In recent years, with the continuous development of video compression technology and the improvement of network bandwidth, the video surveillance system has been favored by the field of security monitoring for its small size, integration, strong operability, customization, easy maintenance, and accessibility. great welcome. In addition to real-time monitoring of on-site conditions, real-time video of the front-end site or emergency alarm events during the unmanned monitoring period can also be read and analyzed after the event. At present, there are many storage systems to support the video surveillance system. Among them, DAS is suitable for the situation where the servers are scattered geographically, and the storage device is directly connected to the server through SCSI interface or fiber channel. SAN transmits data blocks to the...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F12/08
Inventor 徐宇
Owner CHENGDU YINGTAI SCI & TECH
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