Asus PCI-DA2100 User Manual - Page 405
multiple-block striping with distributed, parity
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ASUS GUI RAID Manager: RAID Levels Logical Drive Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Block 7 Block 8 . . Physical Disks Dedicated Parity Striping Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Block 7 Block 8 . . . . Parity (1,2) Parity (3,4) Parity (5,6) Parity (7,8) . . RAID 5 RAID 5 implements multiple-block striping with distributed parity. This RAID level offers the same redundancy available in RAID 3; though the parity information this time is distributed across all disks in the array. Data and relative parity are never stored on the same disk. In the event a disk fails, original data can be reconstructed using the available parity information. For small I/Os, as few as one disk may be activated for improved access speed. RAID 5 offers both increased data transfer rates when data is being accessed in large chunks or sequentially and reduced total effective data access time for multiple concurrent I/O's that do not span multiple drives. C-6 RAID 5