VIA VT8237 Serial ATA RAID Introduction
Create Disk Array
Use the up and down arrow keys to select the Create Array command and press <Enter>.
MSIRemindsYou...
The “Channel”, “Drive Name”, “Mode” and “Size (GB)” in the following example might be different from your system.
Select Array Mode and press <Enter>, a list of array modes will appear. Highlight the target array mode that you want to create, and press <Enter> to confirm the selection. If RAID 1 or RAID 0/1 is selected, an option list will popup and enable the users to select Create only or Create and duplicate. Create only will allow BIOS to only create an array. The data on the mirroring drive may be different from the source drive. Create and duplicate lets BIOS copy the data from the source to the mirroring drive.