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-0

Drive

Drive

Drive

Data 0

Data 1

Data 2

Data 3

Data 4

Data 5

Data 6

Data 7

Data 8

Data 9

Data 10

Data 11

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.

RAID-1

Drive

Drive

Data 0

Data 0

Data 1

Data 1

Data 2

Data 2

Data 3

Data 3

1-3