def ui_command_create(self, name, dev, readonly=None, wwn=None):
        self.assert_root()

        readonly = self.ui_eval_param(readonly, 'bool', False)
        wwn = self.ui_eval_param(wwn, 'string', None)

        so = BlockStorageObject(name, dev, readonly=readonly, wwn=wwn)
        ui_so = UIBlockStorageObject(so, self)
        self.setup_model_alias(so)
        self.shell.log.info("Created block storage object %s using %s."
                            % (name, dev))
        return self.new_node(ui_so)
Creates an Block Storage object. I{dev} is the path to the TYPE_DISK
dataset/ETHPy150Open agrover/targetcli-fb/targetcli/ui_backstore.py/UIBlockBackstore.ui_command_create