Asus P5WDG2 WS Professional User Manual download pdf (Page 153)

ASUS P5WDG2 WS ProfessionalASUS P5WDG2 WS Professional

ASUS P5WDG2 WS Professional

5-295-29

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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. Refer to section “5.6 Creating a RAID driver disk” for details.

5.4 RAID configurations

The motherboard comes with the Intel

ICH7R Southbridge RAID controllers

that allow you to configure Serial ATA hard disk drives as RAID sets. The

motherboard supports the following RAID configurations.

RAID 0RAID 0

RAID 0

(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. Use of two

new identical hard disk drives is required for this setup.

RAID 1RAID 1

RAID 1

(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. Use two new drives or use an existing drive and a new drive

for this setup. The new drive must be of the same size or larger than the

existing drive.

RAID 10 RAID 10

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 5RAID 5

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.

IntelIntel

Intel

Matrix Storage Matrix Storage

Matrix Storage. The Intel

Matrix Storage technology supported

by the ICH7R chip allows you to create a RAID 0 and a RAID 1 set using

only two identical hard disk drives. The Intel

Matrix Storage technology

creates two partitions on each hard disk drive to create a virtual RAID 0

and RAID 1 sets. This technology also allows you to change the hard disk

drive partition size without losing any data.

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Asus P5WDG2 WS Professional User Manual Page 153

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