root@ceph03:~# ceph osd tree
dumped osdmap tree epoch 1152
# id	weight	type name	up/down	reweight
-12	4	root root
-3	4		rack racksecondfloor
-2	1			host nfs01
0	1				osd.0	up	1
-4	1			host ceph02
1	1				osd.1	up	1
-5	1			host ceph03
2	1				osd.2	up	1
-6	1			host mgmt01
3	1				osd.3	up	1
-7	0			host ceph01
-8	0			host control01
-9	0			host compute01