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

• Organize the physical disks into disk groups.
• Create virtual disks within these disk groups.
• Provide host server access.
• Create mappings to associate the virtual disks with the host servers.
  NOTE: Host server access must be created before mapping virtual disks.

Disk groups are always created in the unconfigured capacity of a storage array. Unconfigured capacity is the available physical disk space not already assigned in the storage array.

Virtual disks are created within the free capacity of a disk group. Free capacity is the space in a disk group that has not been assigned to a virtual disk.