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Chapter 7 Thin Provisioning Pool Management
7.2 Functions in the Action Area for Thin Provisioning
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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7.2.1 Create Thin Provisioning Pool
This function creates a Thin Provisioning Pool.
The maximum number of TPP and maximum TPP capacity for each model
*1: Up to 256 TPPs can be created. When the maximum installation number of drives of a model is 512 or less, the
maximum number of TPPs is half the maximum installation number of drives.
There are two methods to create a TPP: automatic drive selection and manual drive selection.
Model Maximum Number of TPP (*1) Maximum TPP Capacity (TB)
ETERNUS DX80 S2 60 128
ETERNUS DX90 S2 120 128
ETERNUS DX410 S2 240 384
ETERNUS DX440 S2 256 768
ETERNUS DX8100 S2 256 768
ETERNUS DX8700 S2 256 1024
• Registering the license for the Thin Provisioning feature is required to create TPP.
• When encryption mode is disabled, TPP encrypted by CM cannot be created.
• Once a TPP has been created, the encryption status cannot be changed.
• TPPs cannot be created in the following conditions:
- When the maximum number of Thin Provisioning Pools are already registered in the ETERNUS DX Disk
storage system
- When the maximum capacity of Thin Provisioning Pools are already registered in the ETERNUS DX Disk
storage system
- When the resources for creating TPPs (such as the number of RAID groups, the number of volumes,
etc.) are insufficient
(When the maximum number of RAID groups or volumes already exist, TPP cannot be created)
• After a TPP is created, the TPP is formatted automatically. To check the format progress, refer to "7.1.1
Thin Provisioning Pool (Basic Information)" (page 200).
• To expand the TPP capacity after a TPP is created, refer to "7.2.4 Expand Thin Provisioning Pool" (page
231).
• To rename the TPP after a TPP is created, refer to "7.2.3 Rename Thin Provisioning Pool" (page 229)
.
• To change the TPP threshold after a TPP is created, refer to "7.2.7 Modify Threshold Thin Provisioning
Pool" (page 239).