--- fixes: - The ONTAP drivers ("7mode" and "cmode") have been fixed to not report consumed space as "provisioned_capacity_gb". They instead rely on the cinder scheduler's calculation of "provisioned_capacity_gb". This fixes the oversubscription miscalculations with the ONTAP drivers. This bugfix affects all three protocols supported by these drivers (iSCSI/FC/NFS). upgrade: - If using the NetApp ONTAP drivers (7mode/cmode), the configuration value for "max_over_subscription_ratio" may need to be increased to avoid scheduling problems where storage pools that previously were valid to schedule new volumes suddenly appear to be out of space to the Cinder scheduler. See documentation `here `_.