Sony VGX-XL1 User Guide - Page 135
RAID 0 - Striping, RAID 1 - Mirroring
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RAID 0 - Striping A performance-oriented data mapping technique. Data are divided into strips and written across all the disks of the array. This level allows for high read/ write performance for a relatively low cost. RAID 0 is not fault-tolerant. Redundant information is not stored. Failure of any disk in the array results in the loss of all data. RAID 1 - Mirroring This level operates with two disks that use parallel access for high datatransfer rates. Level 1 provides excellent data reliability and improves performance for read-intensive applications, but at a relatively high cost. RAID 1 provides redundancy by writing identical data to all disks in the array. If either disk fails, the controller uses the data drive or the mirror drive for data recovery and continues to operate. Data can then be copied to the replacement disk. 132 VGX-XL1 Digital Living System