早期中小企业中,数据存储大多是通过总线、I/O系统或者以单机方式工作的。随着网络技术的发展,存储开始从单机向多机及专用机方向转变,数据的共享与传递也逐渐从依赖主机系统向依赖网络系统过渡。究其原因在于传统中小企业多采用以服务器为中心的存储体系,当业务数据增长到一定程度时,固有的一些缺欠(如无自己的主机处理系统、无法实现数据共享及不易扩容等)凸显,形成数据传输瓶颈,降低了存储系统的可靠性。 In the early days of small and medium-sized businesses, most of the data was stored on the bus, I / O system, or in stand-alone mode. With the development of network technology, storage began to shift from stand-alone to multi-machine and special-purpose machines, and the data sharing and transfer gradually shifted from relying on host systems to network-dependent systems. The reason is that traditional SMBs mostly use server-centric storage systems. When the business data grows to a certain extent, inherent shortcomings (such as lack of host processing systems, data sharing and difficulty of capacity expansion, etc.) Form the bottleneck of data transmission, reduce the reliability of the storage system.