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:

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

Restart the Block Storage services with their new settings:

# service cinder-volume restart
# service cinder-api restart