RAID技术在数据存储中的应用

RAID磁盘阵列是一种把多块独立的硬盘(物理硬盘)按不同方式组合起来形成一个硬盘组(逻辑硬盘),从而提供比单个硬盘更高的存储性能和数据冗余的技术。详细介绍了常见的几种RAID级别及存储特征,并从应用出发介绍了RAID控制器下硬盘重建以及各种原因引起的RAID硬盘数据丢失的恢复方法。

The RAID floppy disk array is one kind （physical hard disk） combines many independent hard disks according to the different way forms a hard disk group （logical hard disk）, thus provides compared to the single hard disk higher memory property and the data redundancy technology. The article introduced the common several kind of RAID rank and the memory characteristic in detail. And embarked from the application introduced under the RAID controller the hard disk reeonstruction as well as each kind of reason caused RAID hard disk data missing restoration method.