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4 raid configurations – Asus P4C800 Deluxe User Manual

Page 131

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ASUS P4C800 Deluxe motherboard user guide

5-23

5.4

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).