How to Set Up RAID on an ASUS Motherboard

By Steve McDonnell

ASUS provides its own BIOS utility with its motherboards. The BIOS includes support for a redundant array of independent disks, or RAID, using Intel's Rapid Storage Technology. RAID can increase disk performance by treating multiple physical disks as a single disk drive. Depending on the number of disks you configure in a RAID array, it can also provide fail-over protection if a single drive in the array fails. ASUS supports four RAID configurations: RAID-0, RAID-1, RAID-5 and RAID-10.

Things You'll Need

  • 2, 3 or 4 disks, preferably identical

Configure RAID Mode

Step 1

Power off the computer, then power it back on and press the "Del" key to launch the ASUS BIOS utility.

Step 2

Select "Advanced" from the large menu buttons, and then choose "SATA Configuration."

Step 3

Select "RAID Mode" as the SATA Mode. Review the list of hard drives you have connected to the motherboard to ensure the computer recognizes all drives you want included in the RAID array. Press "F10" to save your changes, and then press "Enter" to confirm. Wait for the computer to reboot.

Create RAID Array

Step 1

Watch the boot messages and press "Ctrl-I" when you see the Intel Rapid Storage Technology notice that you can create or modify a RAID array.

Step 2

Press "1" to select the option to create a RAID array from the menu. Type a name for the array, and then press "Enter."

Step 3

Select the type of RAID array you're creating using the up and down arrow keys to cycle through the selections, and then press "Enter." Select "RAID 0" to stripe a two-disk array, which configures it to appear to the operating system as a single drive; select "RAID 1" to create a mirrored drive by writing the same information simultaneously to each disk in a two-disk array; select "RAID 5" to replicate data on a three- or five-disk array so that if a single drive fails, the system can recreate it from data stored on the other drives; or select "RAID 10" to create two striped and mirrored drives with a four-disk array.

Step 4

Press "Enter" to choose "Select Disks" and add eligible drives to your array. Use the arrow keys to highlight each drive, and press the spacebar to display a small triangle next to the drive, which indicates that it will be added to the array.

Step 5

Use the arrow keys to select a stripe size for your array if you're configuring a RAID-0 or a RAID-10 array. See the Tips section for suggestions from ASUS based on the type of computer and primary computing function.

Step 6

Press "Enter" to select the default maximum volume capacity. Press "Enter" again to create the array, and then press "Y" to confirm your selection.

Tips & Warnings

  • For typical use, ASUS recommends that you select "128KB" as the stripe size for RAID-0 and "64KB" as the stripe size for RAID-10. If you're configuring RAID for a server, ASUS recommends that you always select "64KB." If the computer will be used primarily to edit audio and video, ASUS recommends you always select "128KB."
  • Intel Rapid Storage Technology supports RAID arrays with two, three or four disks. If you use disks with different capacities, the maximum capacity of each disk will be reduced to the maximum capacity of the smallest disk in the array, and Intel Rapid Storage Technology will ignore the remaining space on larger drives.