单一系统映象在集群管理系统中的实现

介绍了单一系统映象的概念，提出了具有单一系统映象的集群管理系统的结构模型，并从单一入口点、单点管理、高可用性（包括负载平衡和故障屏蔽）和可扩展性等几方面深入探讨了实现单一系统映象的关键技术，同时指出了对系统作进一步完善需开展的工作。

On Implementing Single System Image in an Intermediate-Level Cluster Management System

On user's request, we undertake to implement single system image (SSI) in an intermediate-level cluster management system. Section 1 introduces in some detail the concept and the good point of single system image and lists the supports it requires. Fig. 1 shows the architecture of the cluster management system that we suggest for meeting the user's need. In our suggested system, we use three types of nodes as shown in Fig. 2: management, back-up, server. For implementing our suggested system, we discuss the following four problems; (1) subsection 3. 1 deals with that single point of entry is achieved through the binding of IP addresses; (2) subsection 3. 2 deals with single point of management and control, i. e. , how to enable the user see all nodes and jobs in those nodes and how to enable him to do operations; (3) subsection 3. 3 deals with two aspects of high availability, namely, load balancing and fail over; (4) subsection 3. 4 deals with scalability, i. e. , how to make the system adaptable to the changes of nodes in cluster.