Adaptec 2060100 User Guide - Page 27
Supported RAID Levels
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Introduction Supported RAID Levels HostRAID includes a BIOS Configuration Utility for boosting disk performance and data protection. Adaptec SCSI Card supports the following RAID levels: s RAID 0, Striping-Two or more drives that can read and write data in parallel. Offers higher performance than a single drive, but no fault tolerance. RAID 0 arrays do not store redundant data; if any disk in the array fails, all data is lost. s RAID 1, Mirroring-Data is mirrored on one pair of disks providing 100 percent redundancy. Offers complete fault tolerance. If one disk fails, data is still available. Increases read performance through load balancing. Adaptec recommends using the same size disks, but if you use a disk with less disk space, the actual data capacity of the array equals the smaller capacity disk. s RAID 10, Mirrored Striping-It is a striped array whose members are mirrored arrays. RAID 10 provides both high performance and fault tolerance. 1-11