On the control node, start your default X Window System session.

在控制节点上，请启动默认的 X 窗口系统会话。

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The first line will pop up a message on the control nodes' display (if X Window System is active), letting the user know that the laptop is inactive and needs to be powered down.

第一行将在控制节点的界面上弹出消息（如果 X Window System 处于活动状态），从而让用户知道笔记本处于非活动状态并且需要关闭。

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Study the control of backup granularity and demarcation criterion, and divide backup data to satisfy the system requirement according to backup window and system stability.

研究了备份粒度控制。讨论备份粒度的划分依据，根据备份窗口和系统稳定性划分备份数据，使备份粒度满足系统要求。

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