冗余硬件不仅限于上面正在运行架构的物理设备，还有相关的基础设施，比如电源和冷却装置。

Redundant hardware is not limited to only the physical machines that the architecture is running on, but also the associated infrastructure such as power and cooling facilities.

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冷却系统：保持建筑物或设备不超过为确保安全、高效率和舒适所规定温度限的装置。

Cooling system: Apparatus used to keep the temperature of a structure or device from exceeding limits imposed by needs of safety and efficiency.

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冷却系统：保持建筑物或设备不超过为确保安全、高效率和舒适所规定温度限的装置。

Cooling system: Apparatus used to keep the temperature of a structure or device from exceeding limits imposed by needs of safety and efficiency.

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