User`s manual

Intel® Matrix Storage Manager Features
ver7.0 / User's Manual 11
Table 3. RAID 5 Overview
Hard Drives
Required:
3-6
Advantage:
Higher percentage of usable capacity and high read performance as well as
fault-tolerance.
Fault-
tolerance:
Excellent - parity information allows data to be rebuilt after replacing a
failed hard drive with a new drive.
Application:
Storage of large amounts of critical data. Not available in mobile
configurations.
Refer to the following web site for more information on RAID 5:
http://support.intel.com/support/chipsets/imsm/sb/CS-020653.htm
2.5 RAID 10
A RAID 10 array uses four hard drives to create a combination of RAID levels 0 and 1.
It is a striped set whose members are each a mirrored set.
Table 4 provides an overview of the advantages, the level of fault-tolerance provided,
and the typical usage of RAID 10.
Table 4. RAID 10 Overview
Hard Drives
Required:
4
Advantage:
Combines the read performance of RAID 0 with the fault-tolerance of RAID
1.
Fault-
tolerance:
Excellent – disk mirroring means that all data on one disk is duplicated on
another disk.
Application:
High-performance applications requiring data protection, such as video
editing. Not available in mobile configurations.
Refer to the following web site for more information on RAID 10:
http://support.intel.com/support/chipsets/imsm/sb/CS-020655.htm
2.6 Matrix RAID
Matrix RAID allows you to create two RAID volumes on a single RAID array.
As an example, on a system with an Intel® 82801GR I/O controller hub (ICH7R),
Intel® Matrix Storage Manager allows you to create both a RAID 0 volume as well as
a RAID 5 volume across four Serial ATA hard drives.
Example: Refer to Figure 1.