Asus DSBF-DM/SAS - Manual (Page 112)

5-2 Chapter 5: RAID configuration
RAID 10 is data striping and data mirroring combined without parity (redundancy
data) having to be calculated and written. With the RAID 10 configuration you get
all the benefits of both RAID 0 and RAID 1 configurations. Use four new hard disk
drives or use an existing drive and three new drives for this setup.
RAID 5 stripes both data and parity information across three or more hard
disk drives. Among the advantages of RAID 5 configuration include better
HDD performance, fault tolerance, and higher storage capacity. The RAID
5 configuration is best suited for transaction processing, relational database
applications, enterprise resource planning, and other business systems. Use a
minimum of three identical hard disk drives for this setup.
If you want to boot the system from a hard disk drive included in a created RAID
set, copy first the RAID driver from the support CD to a floppy disk before you
install an operating system to the selected hard disk drive.