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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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7.2.4 Expand Thin Provisioning Pool
This function expands the capacity of 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 expand 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
• TPP capacity is expanded in units of RAID groups. The specifications for a RAID group (such as the RAID
type, the disk type, and the number of member drives) that is to be added are the same as the existing
RAID group.
• TPP capacity cannot be expanded in the following conditions:
- When the maximum capacity of TPPs are already registered in the ETERNUS DX Disk storage system
- When resources for creating TPPs (such as the number of RAID groups and volumes) are insufficient
(When the maximum number of RAID groups or volumes already exist, TPP cannot be expanded)
After a TPP capacity is expanded, the expanded area of TPP is formatted automatically. To check the format
progress, refer to "7.1.1 Thin Provisioning Pool (Basic Information)" (page 200)
.