# File lib/fog/rackspace/models/block_storage/volume.rb, line 38
        def save
          requires :size
          data = connection.create_volume(size, {
            :display_name => display_name,
            :display_description => display_description,
            :volume_type => volume_type,
            :availability_zone => availability_zone
          })
          merge_attributes(data.body['volume'])
          true
        end