[cephadmin@ceph-node1 ceph]$ systemctl list-unit-files|grep ceph
[email protected]                            static
[email protected]                             disabled
[email protected]                             enabled
[email protected]                             enabled
[email protected]                             enabled-runtime
[email protected]                         disabled
[email protected]                          enabled
ceph-mds.target                               enabled
ceph-mgr.target                               enabled
ceph-mon.target                               enabled
ceph-osd.target                               enabled
ceph-radosgw.target                           enabled
ceph.target                                   enabled
[cephadmin@ceph-node1 ceph]$ sudo systemctl status ceph-mon@ceph-node1
● [email protected] - Ceph cluster monitor daemon
   Loaded: loaded (/usr/lib/systemd/system/[email protected]; enabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since Mon 2018-10-22 19:41:56 MSK; 3min 48s ago
  Process: 12099 ExecStart=/usr/bin/ceph-mon -f --cluster ${CLUSTER} --id %i --setuser ceph --setgroup ceph (code=exited, status=1/FAILURE)
 Main PID: 12099 (code=exited, status=1/FAILURE)

Oct 22 19:41:46 ceph-node1 systemd[1]: Unit [email protected] entered failed state.
Oct 22 19:41:46 ceph-node1 systemd[1]: [email protected] failed.
Oct 22 19:41:56 ceph-node1 systemd[1]: [email protected] holdoff time over, scheduling restart.
Oct 22 19:41:56 ceph-node1 systemd[1]: start request repeated too quickly for [email protected]
Oct 22 19:41:56 ceph-node1 systemd[1]: Failed to start Ceph cluster monitor daemon.
Oct 22 19:41:56 ceph-node1 systemd[1]: Unit [email protected] entered failed state.
Oct 22 19:41:56 ceph-node1 systemd[1]: [email protected] failed.
[cephadmin@ceph-node1 ceph]$