ubuntu@inst01:~$ sudo ceph osd tree
sudo: unable to resolve host inst01
2012-06-11 21:16:46.540928 7f043c027700  0 mon.inst01@0(leader) e2 handle_command mon_command(osd tree v 0) v1
2012-06-11 21:16:46.540928 7f043c027700  0 mon.inst01@0(leader) e2 handle_command mon_command(osd tree v 0) v1
dumped osdmap tree epoch 7
# id	weight	type name	up/down	reweight
-1	2	pool default
-3	2		rack bar
-2	2			host inst01
1	1				osd.1	up	1
0	1				osd.0	down	0

ubuntu@inst01:~$