root@bacula-s2:/srv/slow_fs# ceph osd crush remove 9
device '9' does not appear in the crush map
root@bacula-s2:/srv/slow_fs# ceph osd crush remove 10
device '10' does not appear in the crush map
root@bacula-s2:/srv/slow_fs# ceph osd crush remove 11
device '11' does not appear in the crush map
root@bacula-s2:/srv/slow_fs# ceph osd tree

# id	weight	type name	up/down	reweight
-1	12	root default
-3	12		rack unknownrack
-2	3			host bacula-s1
0	1				osd.0	up	1
1	1				osd.1	up	1
2	1				osd.2	up	1
3	1				osd.3	up	1
4	1				osd.4	up	1
5	1				osd.5	up	1
6	1				osd.6	up	1
7	1				osd.7	up	1
8	1				osd.8	up	1
-4	3			host bacula-s2
10	1				osd.10	down	0
11	1				osd.11	down	0
9	1				osd.9	down	0
-5	3			host bacula-s3
12	1				osd.12	up	1
13	1				osd.13	up	1
14	1				osd.14	up	1