Asus PCI-DA2100 User Manual page 15

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
.
.
RAID 5
Striping with Interspersed Parity
RAID 5
Minimum
Disks required
Capacity
Redundancy
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
Striping + non-dedicated Parity
Block 1
Parity (3,4)
Block 6
Block 7
.
.
3
N-1
Yes
Physical Disks
Block 2 Parity (1,2)
Block 3
Parity (5,6)
Block 8 Parity (7,8)
.
.
Block 4
Block 5
.
.
3
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