@volume_name.setter<EOL><INDENT>def volume_name(self, volume_name):<DEDENT>
self._volume_name = volume_name<EOL>
Sets the volume_name of this V1ScaleIOPersistentVolumeSource.
The name of a volume already created in the ScaleIO system that is associated with this volume source.

:param volume_name: The volume_name of this V1ScaleIOPersistentVolumeSource.
:type: str