Fujitsu DX400 Manual Do Utilizador
Chapter 5 Configuration Menu
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5.2 RAID Management
ETERNUS DX400/DX8000 series ETERNUSmgr User Guide Settings/Maintenance
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Copyright 2010 FUJITSU LIMITED
P2X0-0760-02ENZ0
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Click the [OK] button.
→ The [Change Controlling CM of RAID Group (Updating Configuration Information)]
screen appears.
When the update is completed, the [Change Controlling CM of RAID Group (Setting
Result)] screen appears.
Result)] screen appears.
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Click the [OK] button.
→ Returns to the [Menu] screen.
End of procedure
5.2.4
Logical Device Expansion
Logical Device Expansion (LDE) is a function that is able to dynamically increase the capacity of
a RAID group by adding disks to it and/or changing its RAID level.
Normally, volume expansion requires that the RAID group itself be expanded, requiring the
installation (use) of multiple disks. However, because LDE can be used to add even single disks
to an existing RAID group, the RAID group capacity can be expanded by a smaller number of
disks than normal. LDE also allows use of the data in the existing RAID group to continue as nor-
mal.
a RAID group by adding disks to it and/or changing its RAID level.
Normally, volume expansion requires that the RAID group itself be expanded, requiring the
installation (use) of multiple disks. However, because LDE can be used to add even single disks
to an existing RAID group, the RAID group capacity can be expanded by a smaller number of
disks than normal. LDE also allows use of the data in the existing RAID group to continue as nor-
mal.