A newly-provisioned SnapCLOUD VM has a small OS boot drive but no storage, and the Initial Setup wizard in the SnapCLOUD web UI prompts to add storage disks to the VM. SnapCLOUD uses Azure virtual hard disks (VHDs) as representations of physical disks combined together into a storage pool that can then be shared over file and block protocols. New VHDs can be created from 10 to 1023GB in 1GB increments; existing unassigned VHDs in the same Azure subscription can also be attached to a SnapCLOUD VM, but any contents are overwritten upon incorporation. VHDs are fixed in size once created -- they cannot grow or shrink. After Initial Setup, additional disks can be added to the VM at any time, and they must be incorporated as prompted by the SnapCLOUD web UI to add them to the storage pool. Use the Azure portal to attach disks to a VM from a container in an Azure storage account underneath the same Azure subscription. For more details, see https://azure.microsoft.com/en...windows-attach-disk/.