# File lib/fog/xenserver/models/compute/vdi.rb, line 47
        def initialize(attributes = {})
          self.virtual_size ||= '8589934592' unless attributes[:virtual_size]
          self.type ||= 'system' unless attributes[:type]
          self.read_only ||= false unless attributes[:read_only]
          self.sharable ||= false unless attributes[:sharable]
          self.other_config ||= {} unless attributes[:other_config]
          super 
        end