对西门子840D数控系统的数据管理与备份方法进行了总结，系统地介绍了西门子840D数控系统中数据管理的类型及系列备份和分区备份两种常用的数据备份方法。
The methods of data backup for840D system is summarized and introduced in detail. The methods focus on howto backup through the two methods of Series Startup Archive and Area-Specific Archive.
本系列文章关注的重点是冷备份配置。
This series of articles focuses on cold standby configuration.
我选择了两个磁盘，其一个来自生产站点上的DS8000系列，卷id为0620，另一个来自备份站点上的ESS800系列，卷id为103f。
I have chosen two disks; one is from the DS8000 series with a volume ID of 0620 on the production site, and another is from the ESS800 series with a volume ID 103fm on the backup site.
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