Stop all Cinder resources in Pacemaker:
 pcs resource disable cinder-api-clone
 pcs resource disable cinder-scheduler-clone
 pcs resource disable cinder-volume
Wait until the output of pcs status shows that the above services
have stopped running.
Upgrade the relevant packages:
 yum upgrade 'openstack-cinder*' 'python-cinder*'
Reload systemd to account for updated unit files:
 systemctl daemon-reload
Restart all Cinder resources in Pacemaker:
 pcs resource enable cinder-volume
 pcs resource enable cinder-scheduler-clone
 pcs resource enable cinder-api-clone
Wait until the output of pcs status shows that the above
resources are running.