HP Xw6400 - Workstation - 4 GB RAM - RAID 10 Arrays

RAID 10 Arrays (Striping and Mirroring)
RAID 10 = Stri
p
e + Mirro
r
•Re
q
uires minimum of four drives•Provides write
p
erformance of RAID 1
•Protects a
g
ainst sin
g
le HDD failure•Provides read
p
erformance of RAID 0
Drive A
Drive B
Physical Drives
Drive C
Drive D
Block 2
0
2
4
6
Block 4
Block 6
Block 8
Block 1
Block 1
Block 1
Block 1
Block 1
Block 1
Block 1
0
2
4
6
Block 1
Block 8
Block 6
Block 4
Block 2
Mirrored Array
Lo
g
ical
Drive
Size = Half of total
physical capacity
Block 8
Block 7
Block 6
Block 5
Block 4
Block 3
Block 2
Block 1
Data written to all drives as
multiple mirrored arrays
Block 1
1
3
5
Block 3
Block 5
Block 7
Block 9
Block 1
Block 1
Block 1
Block 1
Block 1
1
3
5
Block 1
Block 9
Block 7
Block 5
Block 3
Block 1
Mirrored Array
8