在这一节，我将带您体验模拟磁盘故障的整个过程，随后使您的RAID卷退出降级模式。
In this section, I'll walk you through the process of simulating a disk failure, and then bringing your RAID volume back out of degraded mode.
没有单点故障：你可以将其中的某块盘拔出而不影响磁盘阵列继续正常服务(虽然性能会有所下降，即所谓“降级模式”)，当你替换某块盘后RAID也会进行重建。
No single point of failure: you can pop out a drive and the array will continue to function (albeit with a performance hit, known as "degraded mode"). Replace the drive and it will rebuild itself.
同时，控制器具有绿冲突和故障检测功能以及在故障情况下的降级处理机制。
The controller has the function of detecting the green conflict and malfunction in real time and degrading deal mechanism for malfunction dealing.
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