Configure shadow-copy backup of volumes.

配置卷的卷影复制备份。

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You should make a copy of the disk as a backup.

你应该将磁盘复制一个备份。

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Making a copy or backup of files is considered good practice.

为文件创建一个副本或备份是一种不错的做法。

youdao

You really need that because if you have only one copy of something, you don't have a backup; so, you can store the one copy separately.

你真的很需要这项发明,因为要是你只有一份的话，你就没有备份;,这样的话，你就可以将副本单独留存。

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Chances, are, however, you keep a backup copy of your operating system on an optical disc in the desk drawer, just in case.

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Now users can also use Active Copy to automatically backup key files from one Pogoplug to another off-site Pogoplug, for additional safety and redundancy.

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The goal, says Real Networks Vice President Jeff Chasen, is to do away with space-consuming discs and let users create a backup copy of their video collection.

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