The default volume back-end uses local volumes managed by LVM. This driver supports different transport protocols to attach volumes, currently ISCSI and ISER. Set the following in your cinder.conf, and use the following options to configure for ISCSI transport: volume_driver=cinder.volume.drivers.lvm.ISCSIDriver and for the ISER transport: volume_driver=cinder.volume.drivers.lvm.ISERDriver