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E-5
About RAID
RAID 50
This dual-level RAID type is created by using two or more equal-
sized RAID 5 arrays to create a RAID 0. The top level RAID 0
shares the load among the second-level RAID 5s, improving both
read and write performance. Parity, used in the second level
RAID 5s, provides efficient redundancy.
Note: Adaptec 2410SA does not support RAID 50.
Parity B0
Data 7
Data 11
Parity B3
Drive
Data 4 & Data 5
RAID 5
RAID 5
Data 3
Parity B1
Data 10
Data 15
Drive
Data 2
Data 6
Parity B2
Data 14
Drive
Parity A0
Data 5
Data 9
Parity A3
Drive
Data 1
Parity A1
Data 8
Data 13
Drive
Data 0
Data 4
Parity A2
Data 12
Drive
Data 0 & Data 1
Data 8 & Data 9
Data 12 & Data 13
Data 2 & Data 3
Data 6 & Data 7
Data 10 & Data 11
Data 14 & Data 15
Top-Level Arrays
Second-Level Arrays
RAID 50
RAID 0 RAID 0