# File lib/vagrant-libvirt/config.rb, line 556
      def _handle_disk_storage(options = {})
        options = {
          type: 'qcow2',
          size: '10G', # matches the fog default
          path: nil,
          bus: 'virtio'
        }.merge(options)

        disk = {
          device: options[:device],
          type: options[:type],
          size: options[:size],
          path: options[:path],
          bus: options[:bus],
          cache: options[:cache] || 'default',
          allow_existing: options[:allow_existing],
          shareable: options[:shareable],
          serial: options[:serial]
        }

        @disks << disk # append
      end