本例在每个DS4500上都使用了大量磁盘作为热后备。

This example USES a number of disks on each DS4500 to remain as hot spares.

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提出在兼顾经济性和可靠性时，热后备+静态旁路方式是优选的工作方式。

It was pointed out that the hot backup with static by-pass was the best working mode when the economy and reliability were considered at the same time.

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