Modify VM volumes

After you add a volume of external storage to a VM, save the VM before you modify the volume.

To modify a VM volume:

1. Go to Virtual datacenters → edit VM → Storage
2. Select the attached volume and click the pencil edit button
3. Modify the controller type and controller as required
   
   Edit a VM volume in private cloud
   
   
   Edit a VM volume in Azure
   
   
   For more details see GUI Edit volume VM

To make other changes to a volume (e.g. resize), go to the Virtual datacenters view on the Volumes tab. See Manage Persistent Storage and VMs#Managepersistentvolumes