Fujitsu Eternus DX60 User Manual page 24

Chapter 1 Overview
> 1.2 Configuration
Each RAID level description is shown below.
• RAID0 (striping)
Data is split in unit of blocks and stored across multiple disks.
Figure 1.1
• RAID1 (mirroring)
RAID1 stores the same data on two duplicated disks at the same time.
If one disk fails, other disk continues operation.
Figure 1.2
P3AM-3042-03ENZ0 ETERNUS DX60/DX80 Disk storage system User Guide
Data writing request
A B C D
A
C D
HDD0 HDD1
RAID0 Concept
Data writing request
A B C D
A A
B B
C C
D D
HDD0 HDD1
RAID1 Concept
B
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