Fujitsu ETERNUS DX100 S3 - Page 296

Chapter 3 Volume Management
3.7 TPV Management
ETERNUS Web GUI User’s Guide (Settings)
Copyright 2015 FUJITSU LIMITED P2X0-1270-13ENZ0
296
For details on the parameters for this function, refer to "A.3.6 Set Allocation" (page 799).
For the factory default settings for this function, refer to "Appendix B Set Allocation" (page 989)
.
The procedure to change the allocation method is as follows:
Procedure
1 Select which volume to change the allocation method for (multiple selections can be made)
and click [Set Allocation] in [Action].
• This function is available for "TPV" or "FTV" type volumes.
• If the allocation method is changed from "Thick" to "Thin", optimize the capacity. If a capacity
optimization is not performed, the used capacity (the physical capacity that is allocated to volumes in the
entire TPP) is not reduced. Refer to [Optimize TPV/FTV Capacity] for details.
• This function cannot be used if the allocation method is changed from "Thin" to "Thick" when the free
space in the TPP or FTRP has been insufficient.
• This function cannot be used when the capacity releasing from the server is being performed.
• This function cannot be used if one of the following conditions is true for the selected volume:
- A capacity optimization is being performed or a capacity optimization is being reserved when the
allocation method is changed to "Thick"
- RAID migration is being performed
- TPV balancing is being performed
- FTRP balancing is being performed
- The selected volume belongs to a TPP with a " Broken" status
- The selected volume belongs to an FTRP with a " Broken" status
- The selected volume is a work volume that is created during a RAID migration
• The volume allocation method can be selected when creating a "TPV" or a "NAS Volume". The default
value is "Thin". Refer to "3.1 Create Volume" (page 253)
for details.
• For "TPV" type ODX Buffer volumes, the volume allocation method can be selected during volume
creation. Refer to "7.9.3 Create ODX Buffer Volume" (page 662)
for details.
• For "FTV" type volumes and for "FTV" type ODX Buffer volumes, the volume allocation method is specified
during volume creation with ETERNUS CLI or ETERNUS SF Storage Cruiser.
• The volume allocation method can also be changed when performing a RAID migration. Refer to "3.9
Start RAID Migration" (page 301) for details.
Even if the selected type is "FTV", if the usage of the volume is "System", [Set Allocation] cannot be
clicked.