Asus P4G8X - Manual (Page 127)

ASUS P4G8X series motherboard user guide 5-23
5.4 RAID 0/RAID 1 configurations
The motherboard includes the Silicon Image Sil3112A controller chipset
and two Serial ATA interfaces to support Redundant Array of Independent
Disks (RAID) configuration. This feature supports Serial ATA hard disks.
Use the SATARaid™ utility to configure a RAID set.
RAID 0 (called data striping) optimizes two identical hard disk drives to
read and write data in parallel, interleaved stacks. Two hard disks perform
the same work as a single drive but at a sustained data transfer rate,
double that of a single disk alone, thus improving data access and
storage.
RAID 1 (called data mirroring) copies and maintains an identical image of
data from one drive to a second drive. If one drive fails, the disk array
management software directs all applications to the surviving drive as it
contains a complete copy of the data in the other drive. This RAID
configuration provides data protection and increases fault tolerance to the
entire system.
5.4.1 Install the hard disks
The Sil3112A chipset supports Serial ATA hard disk drives. For optimal
performance, install identical drives of the same model and capacity when
creating a RAID set.
• If you are creating a RAID 0 (striping) array for perfomance, use two
new drives.
• If you are creating a RAID 1 (mirroring) array for protection, you can use
two new drives or use an existing drive and a new drive (the new drive
must be of the same size or larger than the existing drive). If you use two
drives of different sizes, the smaller capacity hard disk will be the base
storage size. For example, one hard disk has an 80GB storage capacity
and the other hard disk has 60GB storage capacity, the maximum
storage capacity for the RAID 1 set is 60GB.