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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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• Capacity
Specify the volume capacity and select the unit of capacity.
Up to a 15-digit number including the "." (decimal point) can be input. Note that when "MB" is
selected, the specified value is rounded down to the nearest whole number. When "GB" or "TB" is
selected, the specified value is converted to "MB" and rounded down to the nearest whole number.
The following input conditions apply:
- When creating Standard volumes or TPVs: 24MB - 128TB (numeric characters)
- When creating SDPVs: 1GB - 2TB (numeric characters)
- MB/GB/TB
• Type
Specify the volume type. When the [Create Volume] function is selected from the RAID group list,
"Standard", "Snap Data Volume", or "Snap Data Pool Volume" is displayed.
When the [Create Volume] function is selected from the Thin Provisioning Pool list, only "Thin
Provisioning" is displayed.
- Standard
Normal volumes that are created in the RAID group.
- Thin Provisioning
Volumes that are created in Thin Provisioning Pools.
- Snap Data Volume
Copy destination volumes for SnapOPC or SnapOPC+.
- Snap Data Pool Volume
Volumes that are used as expansion areas for SDV.
• Capacity of source volume (only SDV)
Specify the copy source volume capacity and select the unit of capacity. This item can only be
specified when "Snap Data Volume" is selected for "Type".
The following input conditions apply:
- 24MB - 128TB
- MB/GB/TB
Up to 15 numbers can be used. If a decimal point is included in the input value, up to 14 numbers
can be used.
[Example] 0.1234567890123 (14 numbers and a decimal point)
• When creating an SDV, the capacity setting is not required. 24 (MB) + "Capacity of source vol-
ume (only SDV)" × 0.1% of the copy source volume capacity is automatically secured in the
ETERNUS DX Disk storage system. When using SnapOPC or SnapOPC+, make sure to create an
SDV and SDPVs.
• When creating multiple volumes in a RAID group, the maximum number of volumes that can
be created for the user capacity may be reduced. To use the entire user capacity, the volume
size must be an exact multiple of the basic size (stripe size). Refer to "E.1 Basic Size for each
RAID Group" (page 995) for details.