一、存储技术发展现状存储在监控行业的发展过程中经历了磁带存储、DVR、NVR、SAN直存等产品形态,新兴的软件定义、云存储等概念也是层出不穷,但无论怎样发展,存储起到的作用始终是是写入和读取两个功能。传统的分布式存储如DVR、NVR产品,只能对监控点位分散的结构通过划分若干监控区域进行分布式存储,保证基本的写入需求,对于大规模读取的性能无法 First, the status of storage technology development Storage in the monitoring industry has undergone the development of tape storage, DVR, NVR, SAN direct storage and other product forms, emerging software definitions, cloud storage concepts are endless, but no matter how the development, storage play The role is always to write and read both functions. The traditional distributed storage such as DVR and NVR products can only distribute the storage of the monitoring point distributed structure by dividing a number of monitoring areas to ensure the basic writing requirements and can not perform the performance of large-scale reading