Dell EMC PowerVault MD 34XX/38XX Series Storage Arrays Administrator's Guide

When you configure a virtual disk, you select a capacity based on the amount of data you expect to store. However, you may need to increase the virtual disk capacity for a standard virtual disk by adding free capacity to the disk group. This creates more unused space for new virtual disks or to expand existing virtual disks.

For more information about virtual disk capacity expansion, see Virtual disk expansion.