专属备用磁盘临时接管发生故障的数据磁盘。

A dedicated spare drive temporarily takes over for a failed data drive.

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另外，这些数据可能被用来识别或者防止将要发生的故障，通过临时停机，系统就将不会出现更严重的损坏。

In addition, such data might be used to identify and avert impending failures by shutting down the system before serious damage occurs.

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另外，这些数据可能被用来识别或者防止将要发生的故障，通过临时停机，系统就将不会出现更严重的损坏。

In addition, such data might be used to identify and avert impending failures by shutting down the system before serious damage occurs.

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