Fujitsu Eternus DX60 User Manual page 38

Chapter 1 Overview
> 1.3 Functions
The example of RAID migration is as follows:
• Example when transferring volumes from a RAID5(3+1) 300GB disk configuration to a
RAID5(3+1) 450GB disk configuration:
Figure 1.13 Example for use RAID Migration 1
• Example when volumes transferred from a RAID5(3+1) configuration to a different RAID
level, RAID1+0(3+3), configuration:
Figure 1.14 Example for use RAID Migration 2
P3AM-3042-03ENZ0 ETERNUS DX60/DX80 Disk storage system User Guide
RAID5(3+1)
300GB 300GB 300GB 300GB
LUN0 600GB
LUN1 300GB
Unused 450GB 4
450GB 450GB 450GB 450GB
RAID5 (3+1)
300GB 300GB 300GB 300GB
LUN0 900GB
Unused 300GB 6
300GB 300GB 300GB
300GB 300GB 300GB
Unused 300GB 4
300GB
Migrate to another
RAID group
RAID5(3+1)
450GB
Migrate to another RAID
group and add the capacity
Define LUN2 additionally
in the surplus space
Unused 300GB 4
300GB
RAID1+0 (3+3)
Migrate to another RAID group
300GB
LUN0 900GB
300GB
LUN0 900GB
38
300GB 300GB 300GB
450GB 450GB 450GB
LUN0 600GB
LUN1 300GB
LUN2 450GB
300GB 300GB 300GB
300GB 300GB
300GB 300GB
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