Add the Block Storage service agent for Telemetry

To retrieve volume samples, you must configure the Block Storage service to send notifications to the bus.

Edit /etc/cinder/cinder.conf and add in the [DEFAULT] section on the controller and volume nodes:

control_exchange = cinder
notification_driver = cinder.openstack.common.notifier.rpc_notifier

Restart the Block Storage services with their new settings.

On the controller node:

# service cinder-api restart
# service cinder-scheduler restart

On the volume node:

# service cinder-volume restart