root@csn1:/mnt/nfs-primary1# ceph osd tree
dumped osdmap tree epoch 161
# id    weight  type name       up/down reweight
-1      9       pool default
-3      2               rack rack1313
-2      2                       host csn1
101     1                               osd.101 up      1
3       1                               osd.3   up      1
-9      2               rack rack1314
-7      2                       host csn3
1       1                               osd.1   up      1
5       1                               osd.5   up      1
-6      4               rack rack1315
-4      2                       host csn2
201     1                               osd.201 up      1
4       1                               osd.4   up      1
-8      2                       host csn5
2       1                               osd.2   up      1
7       1                               osd.7   up      1
-10     1               rack rack1316
-5      1                       host csn4
6       1                               osd.6   up      1
0       0                               osd.0   up      1

root@csn1:/mnt/nfs-primary1# ceph -s
   health HEALTH_OK
   monmap e1: 5 mons at {1=172.21.1.1:6789/0,2=172.21.1.2:6789/0,3=172.21.1.3:6789/0,4=172.21.1.4:6789/0,5=172.21.1.5:6789/0}, election epoch 46, quorum 0,1,2,3,4 1,2,3,4,5
   osdmap e161: 10 osds: 10 up, 10 in
    pgmap v173336: 38784 pgs: 38784 active+clean; 40059 MB data, 81240 MB used, 26746 GB / 27945 GB avail
   mdsmap e33: 1/1/1 up {0=3=up:active}, 4 up:standby

root@csn1:/mnt/nfs-primary1# ceph osd dump | grep 'rep size'
pool 0 'data' rep size 3 crush_ruleset 0 object_hash rjenkins pg_num 12928 pgp_num 12928 last_change 160 owner 0 crash_replay_interval 45
pool 1 'metadata' rep size 2 crush_ruleset 1 object_hash rjenkins pg_num 12928 pgp_num 12928 last_change 1 owner 0
pool 2 'rbd' rep size 2 crush_ruleset 2 object_hash rjenkins pg_num 12928 pgp_num 12928 last_change 1 owner 0