Ceph Luminous convert Filestore OSD to Bluestore (No WAL/DB)

systemctl stop ceph-osd@3
umount /var/lib/ceph/osd/ceph-3/
ceph-volume lvm zap /dev/sdb
ceph osd destroy osd.3 --yes-i-really-mean-it
ceph-volume lvm create --bluestore --data /dev/sdb --osd-id 3

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