Method and device for data storage

Abstract

The invention discloses a method and a device for data storage. The method comprises the following steps of: assigning a first-level file folder for an established channel in a plurality of established first-level file folders; assigning a secondary-level file folder in a plurality of established secondary-level file folders under the first-level file folders; and establishing a file with a fixed size used for storing the data in the channel. In the invention, the form of assigning multilevel file folders for the channel realizes the data storage in the channel, which has no need to spend large amount of time for pre-establishing a file at the very start; and the form also realizes the dynamic addition and deletion, and the dynamic expansion or reduction of the capacity of the storage channel. Furthermore, by cycle overwriting of the files with fixed sizes, the invention completely avoids the generation of the file fragmentation, thus leading the storage performance of arrays or disks to have no reduction with the increasing of the service time.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a data storage method and device. Background technique [0002] With the development of the economy, the demand for security is getting higher and higher. As an important part of the security field, video surveillance has also developed rapidly in recent years. It has developed from an early dedicated system in a specific field to the current digital, multi-network, field, large data volume video surveillance system. [0003] The technology of video surveillance mainly includes audio and video collection, data playback and data storage. The basic working principle of a video surveillance system is to use a camera / camera to obtain video information, and then encode it with an encoder to digitize the video data. In addition to being used for real-time monitoring, digitized video data can also be stored for subsequent playback. [0004] The main purpose of video surveillance is ...

AI Technical Summary

Problems solved by technology

[0007] The implementation methods in the prior art have the following problems: a series of complex data structures and dedicated management areas are used to manage fixed files, which is complicated and wastes storage space

In addition, all arrays or hard disks need to be filled with fixed-size files during initialization, and the capacity of a storage device in the current monitoring system is basically more than 8T, and it will take a lot of time to write all the files

In addition, since storage capacity is fixedly allocated to storage channels, dynamic addition and deletion of storage channels is not supported

Images