Mainboard KM51G-754
21
Appendix II: RAID Setup
Introduction to RAID
RAID (Redundant Array of Independent Disks) technology is a sophisticated disk management
system that manages multiple disk drives. It enhances I/O performance and provides
redundancy in order to prevent the loss of data in case of individual disk failure. The RAID
facility on this mainboard provides RAID 0 and RAID 1.
D
D
isk Striping (RAID 0)
Striping is a performance-oriented, non-redundant disk storage technology. With RAID striping,
multiple disks are used to form a larger virtual disk. Data is then striped or mapped across all
the physical disks. In this way, multiple I/O operations can be executed in parallel, enhancing
performance. Striping does not provide fault tolerance. The minimum number of hard drives for
RAID 0 is 2.
isk Mirroring (RAID 1)
With Disk Mirroring there are redundant disks that mirror the primary disks. Data that is written
to the primary disks are also written to the redundant disks. This redundancy provides fault
tolerant protection from a single disk failure. If a read/write failure occurs on one drive, the
system can still read and write data using the other drive. The minimum number of drives for a
RAID 1 configuration is 2. You are required to use an even number of drives.
Before create RAID Array
Before you configure your RAID Array, you have to enable the “RAID Config” option in the BIOS
Setup Utility.
1. After you boot your system, press the “Del” key when prompted to enter the BIOS Setup
Utility.
2. The “RAID config” option for enabling RAID will be found on the “Integrated Peripherals”
screen. Arrow down to the RAID Enable item and choose the option of enable. (BIOS setting
path: Integrated Peripherals >> RAID config >> RAID Enable>> Enable)
3. On the “RAID config” screen, enable the disks that you want to use as RAID disks.
(The following instructions will explain how to configure two SATA hard drives as RAID disks.)
NVIDIA RAID Utility Configuration
The NVIDIA RAID Utility is used to configure RAID disk management into your hard disks. This
section will explain how to setup and maintain your RAID disk drives.
Starting up the NVIDIA BIOS RAID Utility
When the system boots up during the POST (Power-On Self Test), you will be given an
opportunity to enter the NVIDIA BIOS RAID Utility when the screen prompts you with following
message:
“Press F10 to enter RAID setup utility”
Press the <F10> key to enter the NVIDIA BIOS
RAID utility (note that you will only have a short
window of time to press <F10> before the system
continues with the next step of the boot process).
The Raid Utility screen will display as shown
right.
