Dell EMC Metro node 7.0.1 Administrator Guide

Plan for volume expansion

List the expandable-capacity attribute (in the CLI) or the Expandable By field (in Unisphere) to plan capacity of your back-end storage devices.

• expandable-capacity/Expandable By — For virtual volumes that can be expanded using the storage volume method of expansion, this value is the capacity added to the back-end storage volume, but not yet exposed to the host by the virtual volume.

  This capacity is available for expanding the metro node virtual volume using the storage-volume method of expansion.

  • 0 (zero) - A value of zero indicates that there is no expandable-capacity for the volume. Refer the expansion-method attribute to determine if storage volume based expansion is supported.
  • Non-zero value - A non-zero value indicates capacity available to expand the metro node virtual volume. Examine the expansion-method attribute to determine if storage volume based expansion is supported.