Adaptec ASR-2120S Guide de l'utilisateur télécharger pdf (Page 9)

1-3

Introduction

Adaptec RAID controllers support the following types of array:

RAID-0

A RAID-0 is created by striping data across two or more disk

drives. Simple striping like this creates no redundancy to protect

the data, but by sharing the load equally across multiple drives, it

does provide the best read and write performance of any RAID

type.

RAID-1

A RAID-1 must contain only two disk drives. All data stored on the

array is written to both drives. This duplication, or mirroring, of

the data provides redundancy, ensuring that if one drive fails no

data loss will occur.

Data 0

Data 3

Data 6

Data 9

RAID-0

Data 2

Data 5

Data 8

Data 11

Data 1

Data 4

Data 7

Data 10

Drive

Data 0

Data 1

Data 2

Data 3

RAID-1

Data 0

Data 1

Data 2

Data 3

Drive Drive

UG.book Page 3 Saturday, October 26, 2002 12:08 PM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 127 128

Pas de commentaire

Adaptec ASR-2120S Guide de l'utilisateur Page 9