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Chapter 7 Thin Provisioning Pool Management
7.2 Functions in the Action Area for Thin Provisioning
(3) The list of RAID groups that configure the TPP is displayed. Click the [Name] link for the RAID
group. Any RAID group can be specified because the RAID groups in the TPP have the same
specifications.
(4) Check the drive type and the number of member drives in the detailed screen of the RAID
group.
The procedure to expand a TPP is as follows:
Procedure
1
2
3
4
Select the TPP to be expanded and click [Expand] in [Action].
Select "Manual" for expansion mode.
Click the [Add] button and set the information of the RAID group to be added to
the TPP.
Select the controlling CM of the RAID group and all the drives to be registered in
the RAID group, and click the [OK] button.
•
Controlling CM
Select the controlling CM and CPU of the RAID group that is to be created.
"Automatic" and the installed "CM#x CPU#y" in normal status are displayed as options.
Select "Automatic" for normal operations. When "Automatic" is selected, the CM that is
to be assigned is determined by the RAID group number. For the ETERNUS DX80 S2/
DX90 S2 or the ETERNUS DX410 S2, "CM#0 CPU#0" is assigned for the RAID groups
with even numbers. For RAID groups with odd numbers, "CM#1 CPU#0" is assigned.
For the ETERNUS DX440 S2, "CM#0 CPU#0" is assigned for RAID groups if the RAID
group number is dividable by "4" (the number of CM-CPUs). If the remainder is "1",
"CM#1 CPU#1" is assigned. If the remainder is "2", "CM#1 CPU#0" is assigned. If the
remainder is "3", "CM#0 CPU#1" is assigned.
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Automatic
-
CM#x CPU#y (x: CM number, y: CPU number)
•
Drive Selection
Select the checkbox for the drive to be selected.
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