为应用组件提供命名服务和生命周期服务，同时为应用提供了统一的系统映像和应用模型。
It also provides the naming service and the life cycle service for application components. Meanwhile, Commigration provides a unified system image and programming model for applications.
集群资源管理系统作为集群系统的一个重要组成部分，其目的是将系统分散的资源整合起来，为用户提供一个单一的系统映像。
The job and resource management system is the most important part in the cluster. It aims to integrate all the dispersive resources in all the nodes and provide a single system image to the users.
永远记住要备份您所修改过的所有文件，为了防止最坏的情况发生，您还需要有至少一个系统备份的映像。
As always, keep backups of all the files you change and have at least one system backup image in case the worst happens.
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