What is distributed storage?

Distributed storage system stores data in multiple independent devices. The traditional network storage system uses centralized storage server to store all data, which becomes the bottleneck of system performance and the focus of reliability and security, and cannot meet the needs of large-scale storage applications. The distributed network storage system adopts an extensible architecture, which uses multiple storage servers to share the storage load and location servers to store information. It not only improves the reliability, availability and access efficiency of the system, but also is easy to expand.

Extended data:

Distributed storage and centralized management. In this scheme, * * * has three levels:

1, superior monitoring center: there is usually only one superior monitoring center, which is mainly composed of digital matrix, authentication server and VSTARClerk software.

2. Local monitoring centers: there can be multiple local monitoring centers, which can be set according to geographical location or administrative affiliation, and are mainly composed of digital matrix, streaming media gateway, iSCSI storage device, VSTARRecorder software, etc. Audio and video data are mainly stored in the local monitoring center, which is the concept of distributed storage.

3. Monitoring front-end: mainly composed of camera and network video server. The VE4000 series network video server can be equipped with a hard disk, which is mainly used to temporarily save audio and video data when the network is not smooth, or to save some important front-end data.

Baidu Encyclopedia-Distributed Storage System

Baidu Encyclopedia-Distributed Storage