●
RAID5+0 (Double Striping with Distributed Parity)
Multiple RAID5 volumes are RAID0 striped. For large capacity configurations, RAID5+0 provides better perform-
ance, better reliability, and shorter rebuilding times than RAID5.
Figure 5 RAID5+0 Concept
Striping with
distributed parity (RAID5)
Striping (RAID0)
A
E
B
I
F
P
A, B
P
M, N
C
G
H
P
C, D
P
O, P
Drive#0
Drive#1
Drive#2
Drive#3
Drive#4
Drive#5
D
K
P
K, L
Striping (RAID0)
Striping with
distributed parity
(RAID5)
J
L
M
N
O
P
P
E, F
P
I, J
P
G, H
RAID5
RAID5
A
B
Create parity data
D
Create parity data
C
Data writing request
A
B
C
D
A
B
C
D
A
B
C
D
2. Basic Functions
RAID Functions
19
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
P3AM-7722-25ENZ0
Содержание ETERNUS DX500 S3/DX600 S3
Страница 218: ......