graphite-carbon --------------- carbon-aggregator ----------------- carbon-aggregator can only started via Systemd Unit files. The unit file is able to start instances of your carbon-aggregator. The first instance should named 'a', inside the carbon.conf file the a instance is named only [aggregator] enable the instance a on boot: systemctl enable carbon-aggregator@a start the instance a now: systemctl start carbon-aggregator@a For the second instance you need a new block in your carbon.conf file: [aggregator:b] This instance should named 'b'. carbon-relay ----------- it's like carbon-aggregator. only replace aggregator with relay.