User Guide

Table Of Contents

4-36 Selecting a RAID Level

Marvell RAID Utility User Guide

4.1 RAID 0 (Striping)

RAID 0 is known as striping because data stripes of equal size on the logical drive are divided

among an even number of physical disks, as shown in Figure 4-1. Consequently, the speed

at which data is read and written is increased because data stored on multiple drives can be

read and written simultaneously. However, it is important to remember that data is divided

between multiple disk drives, so data is not recoverable if one of the physical disks fails.

Figure 4-1 RAID 0: Striping

RAID 0 is ideally suited in situations where all of the physical disk drives have the same

capacity. However, you can create a logical drive if the selected disk drives have different

capacities, but it will have a maximum capacity equal to the size of the smallest disk

multiplied by the total number of disks in the array. For example, a logical drive consisting of

two disks, an 80 Gb physical disk and a 100 Gb physical disk, can only create a logical drive

up to a maximum of 160 Gb (2 x 80 Gb).

Block 1

Block 2

Block 3

Block 4

Block 5

Block 6

Block 7

Block 8