Raid 50 - Combination Of Raid 5 And Raid 0; Figure 115. Raid 50 - Combination Of Raid 5 And Raid 0 - Intel SSR212CC User Manual

RAID Levels

RAID 50 - Combination of RAID 5 and RAID 0

Like RAID 10, RAID 50 is created by first creating multiple RAID 5 arrays and spanning
a logical drive across them. RAID 50 arrays provide the excellent performance of RAID 5
with added data security. RAID 50 requires a minimum of six drives and can span a
maximum of eight RAID 5 arrays. RAID 50 will tolerate a single drive failure per stripe.
RAID Adapter

Figure 115. RAID 50 - Combination of RAID 5 and RAID 0

122
RAID 50
ABCDEFGHIJK
Available Capacity
N=# disks
C = Disk Capacity
Available Capacity =
(N*C)(N-1) /N
RAID 5 Set
P1(A+C)
A C
G
P(E+G)
E
I K
P(I+K)
P1(B+D)
B D
H
P(F+H)
F
J L
P(J+L)
RAID 5
&
Data Striping
RAID 50
Intel® Storage System SSR212CC User Guide