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中关村数据中心的 SAN 方案具有完整的结构,作为一个离散的网络,其 SAN 方案包含了存储设备(服务器和磁盘阵列甚至磁带库)、高带宽网络通道(一般由光纤通道构成)、用于通道连接的共享式或交换式集线器、用于设备或服务器数据交换的路由器以及将以上设备连接起来的应用软件。由于存储设备直接连入SAN 并且建立了一个可以使每台服务器都能够获得数据的存储池,SAN 上的所有数据都可以进行集中管理,而集中管理意味着简化数据管理工作和实现较低的管理成本。在传统存储系统中,最大数据传输速率一般低于80Mbps。而以光纤通道环为核心的 SAN 最多可以连接126个设备,传输速率高达200Mbps,这些特性远高于传统存储系统。现在的光纤通道传输速率10倍于已有的高速以太网,在未来的标准中,传输速率将4倍于现
The Zhongguancun data center’s SAN solution has a complete structure. As a discrete network, its SAN solution includes storage devices (servers and disk arrays or even tape libraries), high-bandwidth network channels (typically made of Fiber Channel) for channel connections Shared or switched hubs, routers for device or server data exchange, and application software that connects these devices. With storage attached directly to the SAN and building a storage pool that enables each server to have data, all data on the SAN can be centrally managed, while centralized management means simplifying data management and enabling lower management cost. In traditional storage systems, the maximum data transfer rate is generally less than 80Mbps. The Fiber Channel ring as the core of the SAN can connect up to 126 devices, transfer rates up to 200Mbps, these features far higher than the traditional storage system. The current fiber channel transmission rate of 10 times the existing high-speed Ethernet in the future standards, the transmission rate will be 4 times the present