- - **back-ends supported**<br/>
- can archive its metrics on `graphite` or `opentsdb`, in the same or lower detail
+ - **several operating modes**<br/>
+ autonomous host monitoring, headless data collector, forwarding proxy, store and forward proxy, central multi-host monitoring, in all possible configurations.
+ Each node may have different metrics retention policy and run with or without health monitoring.
+
+ - **time-series back-ends supported**<br/>
+ can archive its metrics on `graphite`, `opentsdb`, `prometheus`, json document DBs, in the same or lower detail