Fujitsu Eternus DX100 S3 User Manual page 121

Chapter 3 Configuration Settings and Display
3.2 Volume Management > create volume
-size
-virtual-size Optional. This parameter can specify the volume size when selecting an SDV type. This
Optional. This parameter specifies the volume size.
• If a Standard volume or a TPV (excluding a Thin Provisioning Volume for a NAS or a backup-
purpose Thin Provisioning Volume for a NAS) is selected, the volume capacity can be speci-
fied (from 24MB to 128TB).
• If a SDV is selected, this parameter cannot be specified.
• If SDPV is selected, a pool volume size that is smaller than (or equal to) 2TB can be specified.
• SDPV must be specified in units of GB.
• If a NAS volume (the "nas-tpv" option or the "nas-tpv-backup" option) is selected, the volume
capacity can be specified within the ranges shown below (not supported in the ETERNUS
DX200F).
- ETERNUS DX100 S3/DX200 S3
From 400GB to 65,519GB
- ETERNUS DX500 S3/DX600 S3
From 400GB to 131,055GB
In the NAS volume , it is necessary to have 300GB for the system management area, and
100GB or more for the user area for storing user data.
• If "max" is specified, volumes are created in the largest free space of the RAID group. The
number of volumes that is created is the value that is specified for the "-count" parameter.
For standard type volumes, the volume capacity is determined so that the capacity of each
created volume is equal and is a multiple of the basic size (stripe size) for the RAID group. If
no volumes are created in the specified RAID groups, the capacity of the volumes is
determined by dividing the RAID group capacity by the number of volumes that are to be
created. The "max" option can be specified for standard (open) volumes, SDPVs, and WSVs.
The method for determining the volume capacity for each volume type is as follows.
- standard
The remaining capacity is assigned by units of stripe size.
- sdpv
The remaining capacity is assigned by units of SDPE resolution.
- wsv
The largest free space is determined by the smallest free capacity among the
concatenated RAID groups. This largest free space is then used to create WSVs in each of
the concatenated RAID groups. The remaining capacity is assigned by units of Wide Stripe
Size.
If the specified RAID groups has the capacity that is larger than the maximum capacity of
the volume in the ETERNUS DX, this command terminates with an error.
size
Volume capacity
Select whether terabytes (TB), gigabytes (GB), or megabytes (MB) are used for
the capacity.
Example: 1tb, 120gb, 512mb
max The specified number of volumes are created with the maximum capacity that
can be allocated in the free space of the specified RAID groups.
parameter cannot be specified when selecting a type other than SDV.
virtual_size
Volume size
ETERNUS CLI User's Guide
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