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常见RAID级别及原理-13467944-51CTO博客
source link: http://blog.51cto.com/13477944/2068653
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RAID-0总结： 1.提高了磁盘读、写、IO性能，理论：硬盘原速度的*硬盘数 2.无容错能力 3.最少使用2块硬盘 4.硬盘可用空间，为所有硬盘中空间最小的硬盘空间乘以硬盘总数，公式如下 N*min（Disk0..DiskN）而DAID-1 将多个硬盘相互做成镜像，提高冗余能力，读取速度，但是
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