Fujitsu DX440 S2 Computer Drive User Manual


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Chapter 5 Volume Management
5.2 Functions in the Action Area for Volume
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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Requirements for a TPP in which the target TPV is registered:
The "Status" is " Available"
The free space in the TPP is larger than the capacity of the TPV that is to be balanced
The procedure to start balancing TPVs is as follows:
Procedure
1 Select the TPV to be balanced and click [Start Balancing] in [Action].
A confirmation screen appears.
2 Click the [OK] button.
TPV balancing starts.
3 Click the [Done] button to return to the [Balancing Thin Provisioning Volume] screen.
End of procedure
If a Thin Provisioning license is not registered, this function cannot be used.
The TPV balancing cannot be performed in the following conditions:
- When the maximum number of volumes is already registered in the ETERNUS DX Disk storage system
- When the total number of TPV balancing, RAID migration, and FTV balancing (*1) processes that are
performed at the same time is 32
- When the total capacity for the TPV balancing, RAID migration, and FTV balancing (*1) processes that
are performed at the same time is 128TB
- When the TPP capacity that can be registered in the ETERNUS DX Disk storage system is insufficient
*1: When the FTRP balancing is performed, the FTV balancing process starts in the FTSP. Refer to "7.2.12 Start
Balancing Flexible Tier Pool" (page 248) for details.
This function balances the physical allocating area of the TPV among RAID groups of the TPP to which the
TPV belongs. It is not able to balance TPV by RAID migration of the TPV to other TPPs.
TPV balancing can be performed during the work I/O.
To check the balancing progress of a TPV, refer to "5.1.8 Balancing Thin Provisioning Volume" (page 86)
.