Asus PCI-DA2100 User Manual - Page 15
Raid 5
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3 RAID 3 performs Block Striping with Dedicated Parity. One drive member is dedicated to storing the parity data. When a drive member fails, the controller can recover or regenerate the lost data of the failed drive from the dedicated parity drive. Logical Drive Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Block 7 Block 8 . . Physical Disks Striping + non-dedicated Parity Block 1 Parity (3,4) Block 6 Block 7 . . Block 2 Block 3 Parity (5,6) Block 8 . . Parity (1,2) Block 4 Block 5 Parity (7,8) . . RAID 5 Striping with Interspersed Parity RAID 5 Minimum 3 Disks required Capacity N-1 Redundancy Yes RAID 5 is similar to RAID 3 but the parity data is not stored in one dedicated hard drive. Parity information is interspersed across the drive array. In the event of a failure, the controller can recover/regenerate the lost data of the failed drive from the other surviving drives. ASUS PCI-DA2100/PCI-DA2200 User's Manual 15