To use Cinder with the NFS driver, first set the
volume_driver in
cinder.conf:
volume_driver=cinder.volume.drivers.nfs.NfsDriver
The following table contains the options supported by the NFS driver.
| Configuration option=Default value | Description |
| nfs_mount_options=None | (StrOpt) Mount options passed to the nfs client. See section of the nfs man page for details. |
| nfs_mount_point_base=$state_path/mnt | (StrOpt) Base dir containing mount points for nfs shares. |
| nfs_oversub_ratio=1.0 | (FloatOpt) This will compare the allocated to available space on the volume destination. If the ratio exceeds this number, the destination will no longer be valid. |
| nfs_shares_config=/etc/cinder/nfs_shares | (StrOpt) File with the list of available nfs shares |
| nfs_sparsed_volumes=True | (BoolOpt) Create volumes as sparsed files which take no space.If set to False volume is created as regular file.In such case volume creation takes a lot of time. |
| nfs_used_ratio=0.95 | (FloatOpt) Percent of ACTUAL usage of the underlying volume before no new volumes can be allocated to the volume destination. |
