4 raid configurations, 1 raid definitions, Raid configurations -30 5.4.1 – Asus P5K Pro Manuel d'utilisation

Page 134: Raid definitions -30

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5-30

Chapitre 5: Support logiciel

Si vous souhaitez booter le système depuis un disque dur qui est inclus dans un

ensemble RAID, copiez au préalable le pilote RAID depuis le CD de support sur

une disquette avant d’installer une OS sur le disque dur sélectionné. Consulter

la section “5.5 Créer une disquette du pilote RAID” pour plus de détails.

5.4

RAID configurations

The motherboard comes with the Intel

®

ICH9R Southbridge RAID controller that allows

you to configure IDE and Serial ATA hard disk drives as RAID sets.
• Le Southbridge Intel

®

ICH9R Southbridge RAID intègre un contrôleur RAID

SATA supportant les configurations RAID 0, RAID 1, RAID 10 et RAID 5 pour

six canaux Serial ATA indépendants.

5.4.1

RAID definitions

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 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 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.
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.

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