虽然可能看起来很明显，但是全面测试这些组件，以验证当一个组件失效发生时它们会作相应的工作并维护可用性是很重要的。
It may seem obvious, but it is important to comprehensively test these components in order to verify that when a failure does occur, they do their job and maintain availability.
执行可靠性测试和根本原因和失效分析复杂问题和系统使用适用的统计方法。
Perform reliability testing and root cause and failure analysis of complex problems and systems using applicable statistical methods.
你测试的次数要足够大，以给你的变数一个公平和充足的测试，同时，也要小，以防止它们的有效性降低，如果你亏损了很多钱，你就知道它失效了。
Fair and adequate test, but at the same time small enough so that if their effectiveness diminishes, you can detect it before you lose an inordinate amount of money.
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