beautypg.com

4 raid configurations, 1 raid definitions – Asus Crosshair V Formula/ThunderBolt User Manual

Page 172

background image

4-38

Chapter 4: Software support

4.4

RAID configurations

The motherboard comes with the AMD

®

SB950 chipset that allows you to configure

Serial ATA hard disk drives as RAID sets. The motherboard supports the following

RAID configurations: RAID 0, RAID 1, RAID 5 and RAID 10.

• You must install Windows

®

XP Service Pack 2 or later versions before using

Serial ATA hard disk drives. The Serial ATA RAID feature is available only if

you are using Windows

®

XP SP2 or later versions.

• Due to Windows

®

XP / Vista limitation, a RAID array with the total capacity

over 2TB cannot be set as a boot disk. A RAID array over 2TB can only be

set as a data disk only.

• If you want to install a Windows

®

operating system to a hard disk drive

included in a RAID set, you have to create a RAID driver disk and load the

RAID driver during OS installation. Refer to section 4.5.Creating.a.RAID.

driver.disk for details.

4.4.1

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.

This manual is related to the following products: