RAID建立

说明：  磁盘阵列，有“独立磁盘构成的具有冗余能力的阵列”之意。 磁盘阵列是由很多价格较便宜的磁盘，组合成一个容量巨大的磁盘组，利用个别磁盘提供数据所产生加成效果提升整个磁盘系统效能。利用这项技术，将数据切割成许多区段，分别存放在各个硬盘上
(The disk array has the idea of "redundant arrays of Independent Disks". Disk arrays are made up of many inexpensive disks that are grouped into a large volume of disks that use individual disks to provide data to improve the performance of the entire disk system. Using this technology, the data is cut into many sections, which are stored on each hard disk.)