# CEPH OSD Journal Switch
OSD=11
systemctl stop ceph-osd@$OSD
ceph-osd -i $OSD --flush-journal
rm /var/lib/ceph/osd/ceph-$OSD/journal
rm /var/lib/ceph/osd/ceph-$OSD/journal_uuid
lvcreate -n osd$OSD-journal -L10G kingssd
chown ceph:ceph /dev/kingssd/osd$OSD-journal
ln -s /dev/kingssd/osd$OSD-journal /var/lib/ceph/osd/ceph-$OSD/journal
ceph-osd -i $OSD --mkjournal
systemctl start ceph-osd@$OSD