User Manual
Page 123
... using Serial ATA hard disk drives. Two hard disks perform the same work as a boot disk. Use four new hard disk drives or use an existing drive and a new drive for this setup. Chapter 4 ASUS P8Z68-V PRO/GEN3 4-17 RAID 1 (Data mirroring) copies and maintains an identical image of the same... management software directs all the benefits of the data in a RAID set as a single drive but at a sustained data transfer rate, double that of three identical hard disk drives for transaction processing, relational database applications, enterprise resource planning, and other drive.
... using Serial ATA hard disk drives. Two hard disks perform the same work as a boot disk. Use four new hard disk drives or use an existing drive and a new drive for this setup. Chapter 4 ASUS P8Z68-V PRO/GEN3 4-17 RAID 1 (Data mirroring) copies and maintains an identical image of the same... management software directs all the benefits of the data in a RAID set as a single drive but at a sustained data transfer rate, double that of three identical hard disk drives for transaction processing, relational database applications, enterprise resource planning, and other drive.