一些容错性更好的RAID级别(比如RAID10和RAID6)帮助提供一层额外保障，确保存储器子系统能够经受各种磁盘故障。

Some of the more fault-tolerant RAID levels, such as RAID10 and RAID6, help provide an extra assurance that the storage subsystem can survive various disk failures.

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因此，在这样的系统中，作为存储设备的磁盘阵列要具有高可靠性和一定的容错能力。

So, in such systems, the disk arrays, as storage system, should be high reliable and have fault-tolerant guarantee.

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说明利用RAID技术能提高磁盘存取速度、提高系统的容错能力。

Note the use of RAID technology can improve disk access speed, system fault tolerance.

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