roadmap/3.8: Update tiering related features
roadmap/3.8: Update tiering related features

anoopcs9/glusterweb,anoopcs9/glusterweb,gluster/glusterweb,gluster/glusterweb,anoopcs9/glusterweb,gluster/glusterweb,anoopcs9/glusterweb,gluster/glusterweb