设备映射器模块必须在系统启动时装载。

The Device mapper module must be loaded at system startup.

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设备映射器的作用就是将这些名称正确地映射到物理设备。

It is the device mapper's job to map these names correctly to the physical devices.

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LVM依赖于另一个名为设备映射器的存储组件，其提供(在其他功能中)多路径功能。

The LVM relies on another storage component called the Device-mapper, which provides (among other features) the ability to multipath.

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