def attach_volume(self, context, connection_info, instance, mountpoint,
                      disk_bus=None, device_type=None, encryption=None):
        self._volumeops.attach_volume(connection_info,
                                      instance['name'],
                                      mountpoint)
Attach volume storage to VM instance.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/virt/xenapi/driver.py/XenAPIDriver.attach_volume