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4-11 RAID configurations
The motherboard includes the Promise® PDC20378 controller chipset to support Redundant
Array of Independent Disks (RAID) configurations. Using two Serial ATA hard disks on
SATA_RAID1/SATA_RAID2 interfaces, and two ATA133 hard disks on the PRI_RAID
interface, you may set up RAID0, RAID1, RAID0+1, and Multi-RAID configurations. Use
the MBFastTrak378™ BIOS and the FastBuild™ utility to configure a disk array.
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.
RAID 0+1 is data striping and data mirroring combined without parity
(redundancy data) having to be calculated and written. The advantage of RAID 0 + 1 is fast
data access (like RAID 0), but with the ability to loose one drive and have a complete
duplicate surviving drive or set of drives (like RAID 1).
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