在这个步骤中一定要按电子书中说的做备份。
Make sure you make a backup at this stage, as the ebook instructs.
你从来不给你的硬盘做备份。
我想要拿一个1tb的硬盘来做备份用。
人们有CAD数据备份零碎，其他数据得本人做备份。
We do for CAD data. You have to backup the other files yourself.
这样做是为了便于访问、更新、备份、历史访问和管理。
This is for access, update, backup, historical access, and ease of manageability.
因此将备份前一个星期天以后做的所有更改。
Therefore, all changes since previous Sunday will be backup.
星期六使用级别2。rman将备份星期四以后做的所有更改。
Saturday USES level 2. RMAN will backup all changes since Thursday.
制定一个计划，如果备份不能完成应该怎么做？
Make a decision on what you'll do if a backup ever fails to complete.
执行全数据库备份时(如果还没有这么做的话)。
When to perform a full database backup (if you have never done so).
仅仅确定你也能从你已经做的备份修复。
Just make sure you can also restore from the backup you've made.
你应该给档案做一份备份。
备份你的电脑硬盘已经不仅是大公司必做的事情。
Backing up your hard drive is not just something for big businesses anymore.
好的，还有，你应该为它做一份备份。
你好知道我怎么做才能备份电脑文件吗？
在你做任何编辑之前，在某个位置保存一个文件备份。
备份数据库是做物理备份的行为。
Backing up a database is the act of making a physical backup.
与此你会得到一些时间来备份您的数据和做其他重要的工作。
With this you will get some time to backup your data and do other important work.
那样做只是复制的文件夹，并把它们别处（备份副本）。
To do that just copy the folders and put them somewhere else (backup copy).
那样做只是复制的文件夹，并把它们别处（备份副本）。
To do that just copy the folders and put them somewhere else (backup copy).
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