Nvidia 754 Manuel d'utilisateur télécharger pdf (Page 55)

RAID Configuration

Page 5-1

Section 5

RAID CONFIGURATION

Introduction

This section gives a brief introduction on RAID-related background knowledge and

a general procedure to setup RAID system on this mainboard.

RAID Basics

RAID (Redundant Array of Independent Disks) is a method of combining two or

more hard disk drives into one logical unit known as a RAID array. The advantage

of RAID is to provide better performance or data fault tolerance. Fault tolerance is

achieved through data redundant operation, where if one drives fails, a mirrored

copy of the data can be found on another drive. This can prevent data loss if the

operating system fails or hangs.

Below is an example of a RAID array with 2 drives.

The individual disk drives in an array are called “members”. All disk members in a

formed disk array are recognized as a single physical drive to the operating system.

Hard disk drives can be combined together through a few different methods. The

different methods are referred to as different RAID levels. Different RAID levels

represent different performance levels, security levels and implementation costs.

The table below briefly introduced these RAID levels.

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Nvidia 754 Manuel d'utilisateur Page 55