Fujitsu Eternus DX200F, User Manual

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Appendix A Parameter List
A.3 Volume Management
ETERNUS Web GUI User’s Guide (Settings)
Copyright 2015 FUJITSU LIMITED P2X0-1270-13ENZ0
782
• Capacity
Description 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.
Input condition/
Display contents
•
For Standard volumes, WSVs, or TPVs
24 MB - 128 TB
•
For SDPVs
1 GB - 2 TB
•
For NAS
-
400GB - 128TB (When the NAS FS block size is "256KB" or "32KB")
-
400GB - 32TB (When the NAS FS block size is "8KB")
•
MB/GB/TB
•
If "Use all Largest Free Space" is selected when creating volumes manually, inputting the capacity is not
required. The specified value and unit are not used.
•
When using SnapOPC or , make sure to create an SDV and SDPVs. The SDV is created with the
minimum necessary capacity.
•
The NAS user volume uses 300GB of the specified capacity as the system area. Take the system area in
consideration and specify the capacity.
•
When a NAS user volume is created, three system volumes ($SYSVOL1 - 3) are automatically created in the
same TPP for each storage system. If free space for $SYSVOL 1 - 3 (17GB) is not available in the TPP, a NAS user
volume cannot be created. If $SYSVOL1 - 3 have already been created in the ETERNUS DX, free space for creating
new $SYSVOL1 - 3 is not required.
•
The maximum NAS user volume capacity varies depending on the selected "NAS FS Block Size".
•
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
"F.1 Basic Size for each RAID Group" (page 1054) for details.
•
To create a volume that is larger than the largest free space, concatenate the free spaces in the RAID group to
the existing volume. These volumes cannot be created by only using this function. Refer to
"3.5 Expand Volume"
(page 278) for details.
•
When creating an SDV, 24 (MB) + "Volume Capacity only SDV" x 0.1% is automatically secured in the
ETERNUS DX. Specifying a "Capacity" value is not required. "24MB" is the smallest volume capacity. "Capacity of
source volume
only SDV" x 0.1% is the capacity that is used for the controlling information area in the SDV.
•
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)