Asus KFN5-Q/SAS - Manual (Page 119)

5-12 Chapter 5: RAID configuration
5.2.5 Rebuilding a RAID set
Rebuilding function only applies to RAID1 (Mirroring), RAID0+1 (Stripe
Mirroring), or RAID5 Arrays. This function does not apply to RAID0
(Striping) or JBOD (Spanning).
To rebuild a RAID set:
1. If the BIOS detects that one hard disk failed, and causes RAID1,
RA0+1 or RAID5 to be degraded, press the <F10> hot key to enter
the NVIDIA ® nForce MediaShield utility.
2. From the Array List, use the up or down arrow keys to select the RAID
set you want to rebuild, then press <Enter>. The RAID set details
appear.