root@ceph-osd6:~# ceph osd tree
# id    weight  type name       up/down reweight
-3      13.3    root rack1
-1      7.6             host ceph-osd1
0       3.8                     osd.0   up      1
1       3.8                     osd.1   up      1
-2      5.7             host ceph-osd6
2       1.9                     osd.2   up      1
3       1.9                     osd.3   up      0.7844
4       1.9                     osd.4   up      1