User`s guide

4-22
RAID50
Data is distributed to the HDDs by striping with distributed parity, and then written onto the HDDs by striping. Owing
to this feature, both the high disk access performance of RAID0 and, in addition, the high reliability of RAID5 can be
achieved.
RAID Controller
HDD 1 HDD 2
Stripe 1
HDD 3
Stripe 6
Stripe 2
Parity (5, 6)
Parity (1, 2)
Stripe 5
Parity (9, 10) Stripe 9 Stripe 10
HDD 4
Stripe 3
Stripe 8
Parity (11, 12)
HDD 5 HDD 6
Stripe 4
Parity (7, 8)
Stripe 11
Parity (3, 4)
Stripe 7
Stripe 12
RAID5 RAID5
RAID0