Chapter 1 Overview
> 1.2 Configuration
ETERNUS DX60/DX80/DX90 Disk storage system User Guide
27
Copyright 2010 FUJITSU LIMITED
P3AM-3042-06ENZ0
Each RAID level description is shown below.
• RAID0 (striping)
Data is split in unit of blocks and stored across multiple disks.
Figure 1.1 RAID0 concept
• 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 RAID1 concept
A
C
B
D
Data writing request
HDD0 HDD1
ABCD
A
B
C
D
ABCD
Data writing request
A
B
C
D
HDD0 HDD1
To Next Page
Loading...
