Description of configuration options for storage_glusterfs

Configuration option=Default value	Description
glusterfs_disk_util=df	(StrOpt) Use du or df for free space calculation
glusterfs_mount_point_base=$state_path/mnt	(StrOpt) Base dir containing mount points for gluster shares
glusterfs_qcow2_volumes=False	(BoolOpt) Create volumes as QCOW2 files rather than raw files.
glusterfs_shares_config=/etc/cinder/glusterfs_shares	(StrOpt) File with the list of available gluster shares
glusterfs_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.