You can create a tiering-enabled volume using the Control System, the CLI, and the REST API.
$maprcli volume create -name <volName> -path <volmountpath> -tieringenable truecurl -k -X POST 'https://abc.sj.us:8443/rest/volume/create?name=<volName>&path=<volmountpath>&tieringenable=true' --user mapr:maprvolume create.