The script in Listing 10 monitors disk space, and you can set the warning (warninglimit) and emergency (lowlimit) limits, as well as the list of file systems that are checked.

清单10中的脚本用来监视磁盘空间，您可以设置警告(warninglimit)和紧急情况(lowlimit)限制，以及进行检查的文件系统的列表。

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That emergency maintenance space is there so it can be used to recover from an overfull disk.

有了这个紧急维护空间，就可以利用它对一块已满的磁盘进行恢复。

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Once encryption is enabled, it cannot be disabled. Make sure you have a current Emergency Repair Disk before continuing.

一旦启用加密就不能禁用。在继续之前请确定您有当前的紧急修复磁盘。

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It can even serve as an emergency boot disk if the Mac crashes.

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