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

Disk group expansion

1. In the AMW, select the Storage & Copy Services tab.
2. Select a disk group.
3. From the menu bar, select Storage > Disk Group > Add Physical Disks (Capacity). Alternatively, right-click on the disk group and select Add Physical Disks (Capacity) from the pop-up menu.
   The Add Free Capacity window is displayed. Based on the RAID level, and the enclosure loss protection of the current disk group, a list of unassigned physical disks is displayed.

   NOTE: If the RAID level of the disk group is RAID Level 5, or RAID Level 6, and the expansion enclosure has enclosure loss protection, Display only physical disks that ensure enclosure loss protection is displayed and is selected by default.
4. In the Available physical disks area, select physical disks up to the allowed maximum number of physical disks.
   NOTE: You cannot mix different media types or different interface types within a single disk group or virtual disk.
5. Click Add.
   A message prompts you to confirm your selection.
6. To add the capacity to the disk group, click Yes.
   NOTE: You can also use the Command Line Interface (CLI) on both Windows and Linux hosts to add free capacity to a disk group. For more information, see the Dell EMC PowerVault MD 34XX/38XX Series Storage Arrays CLI Guide.

   NOTE: After the capacity expansion is completed, extra free capacity is available in the disk group for creation of new virtual disks or expansion of existing virtual disks.