这个级别是通过把2块或更多的硬盘组成一个逻辑卷，逻辑卷的容量大小等于所有磁盘的综合。

This level is achieved by grouping 2 or more hard disks into a single unit with the total size equaling that of all disks used.

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iS tatPro可以完美替代标准的OS X工具，它不仅显示CPU、内存和磁盘空间用量，还显示活跃进程的综合数据及其他系统状态。

IStatPro ACTS as the perfect replacement to the standard OS X tool, presenting CPU, memory and disk space usage, along with comprehensive data on active processes and other system stats.

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