Intel Matrix Storage Manager 8.x User Guide
Intel® Matrix Storage Manager
F
ea
t
u
r
e
s
10
ver7.0 / User's Manual
Table 1.
RAID
0
O
v
e
r
v
i
e
w
Hard
D
r
i
ve
s
R
e
qu
i
r
e
d
:
2-6
Ad
va
n
t
a
g
e
:
Highest transfer rates
F
a
u
l
t
-
t
o
l
e
r
a
nc
e
:
None – if one disk fails all data will be lost
App
li
c
a
t
i
on
:
Typically used in desktops and workstations for maximum performance for
temporary data and high I/O rate. 2-drive RAID 0 available in specific
mobile configurations.
2.3
RAID
1
(
M
i
rr
o
r
i
ng
)
A RAID 1 array contains two hard drives where the data between the two is mirrored
in real time to provide good data reliability in the case of a single disk failure; when
one disk drive fails, all data is immediately available on the other without any impact
to the integrity of the data.
Table 2 provides an overview of the advantages, the level of fault-tolerance provided,
and the typical usage of RAID 1.
Table 2.
RAID
1
O
v
e
r
v
i
e
w
Hard
D
r
i
ve
s
R
e
qu
i
r
e
d
:
2
Ad
va
n
t
a
g
e
:
100% redundancy of data. One disk may fail, but data will continue to be
accessible. A rebuild to a new disk is recommended to maintain data
redundancy.
F
a
u
l
t
-
t
o
l
e
r
a
nc
e
:
Excellent – disk mirroring means that all data on one disk is duplicated on
another disk.
App
li
c
a
t
i
on
:
Typically used for smaller systems where capacity of one disk is sufficient
and for any application(s) requiring very high availability. Available in
specific mobile configurations.
2.4
RAID
5
(Striping
with
P
ar
i
t
y
)
A RAID 5 array contains three or more hard drives where the data and parity are
striped across all the hard drives in the array. Parity is a mathematical method for
recreating data that was lost from a single drive, which increases fault-tolerance.
Table 3 provides an overview of the advantages, the level of fault-tolerance provided,
and the typical usage of RAID 5.