桌面云系统研究及多节点容灾方案分析

桌面云系统是一种基于云计算技术的集中式的客户终端解决方案。在用户侧部署功能简单的瘦客户机，具体的计算以及存储依靠云端的服务器系统。在客户终端大量部署的应用场景当中，桌面云系统能够降低运维成本，提供更好的保密性以及安全性，还能提供移动办公的能力。在节能减排方面，桌面云系统的平均能耗也低于传统终端。多节点部建设云端桌面云系统能够提高系统的高可用性，在某个节点服务器发生故障时，在网络可达的情况下，用户可将虚拟终端迅速迁移至其它节点，从而保证上层业务的连续性。

Research of desktop cloud system and analysis of disaster tolerant project with multi nodes

Desktop cloud system is a centralized terminal solution based on cloud computing technology. Thin clients are deployed in the user side. The calculation and storage servers are depending in the remote side. The deployment of thin clients can reduce the operation and maintenance costs, and be safer for the data of the company. Also it improve the mobility of working. For the energy saving and emission reduction, the average energy consumption of the desktop cloud system is also lower than the traditional terminal. Multi nodes deployment of cloud desktop system can improve the system availability. If a node crashed, the virtual machines can quickly move to other nodes to ensure the continuity of the upper service.