CLI Guide

[-f|--force]
The meaning of this argument varies, depending on whether the --extent argument is used (expansion
method = concatenation) or not used (expansion-method = storage-volume)
● For storage-volume expansion, the --force argument skips the confirmation message.
● For concatenation expansion, the --force argument expands a virtual volume built on a RAID 1 device
using a target that is not a RAID 1 or that is not as redundant as the device supporting the virtual
volume.
* - argument is positional.
Description
This command expands the specified virtual volume using one of two methods; storage-volume or concatenation.
The ll command output shows whether the volume is expandable, the expandable capacity (if any), and the expansion method
available for the volume. For example:
VPlexcli:> ll /clusters/cluster-1/virtual-volumes/ Test_volume
Name Value
------------------- --------------
.
.
.
capacity 0.5G
consistency-group -
expandable true
expandable-capacity 4.5G
expansion-method storage-volume
expansion-status -
.
.
.
There are two methods to expand a virtual volume; storage-volume and concatenation.
● storage-volume - If the virtual volume has a non-zero expandable-capacity, this command will expand the capacity of the
virtual volume by it's full expandable-capacity.
To use the storage-volume method of expansion, use this command without the --extent argument. The storage-volume
method of expansion adds the entire amount of the expandable-capacity to the volume’s configured capacity.
● concatenation - (also known as RAID C expansion) Expand the virtual volume by adding the specified extents or devices.
The concatenation method does not support non-disruptive expansion of DR1 devices.
Use this command with the --extent argument to expand a virtual volume using the concatenation method of expansion.
NOTE: You cannot expand a virtual volume if the initialization status of the virtual volume is failed or in-progress.
Before expanding a storage volume, understand the limitations of the function and the prerequisites required for volumes to be
expanded. See the Dell EMC Administration Guide for metro node for more information on how expansion works. For procedure
to expand virtual volumes, see the metro node procedures in the SolVe Desktop.
Examples
Expand a volume using the storage-volume method:
● The ll clusters/cluster-1/virtual-volumes command displays virtual volumes, and whether the volumes are
expandable, and the expandable capacity, if any (not all columns are shown in example).
● The ll clusters/cluster-1/virtual-volumes/virtual-volume command displays the method (storage-volume) of
expansion applicable to the volume.
● The expand command starts the expansion of the specified virtual volume.
● The ll clusters/cluster-1/virtual-volumes command displays the expanded volume:
VPlexcli:/clusters/cluster-1/virtual-volumes> ll /clusters/cluster-1/virtual-volumes
/clusters/cluster-1/virtual-volumes:
Commands
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