The last two tools we'll discuss in this chapter are excellent general purpose monitoring and trending solutions. Prometheus is a flexible monitoring and time-series tool for alerting and trending all manner of system data. While the standalone operation is possible, linkage with the Grafana visualization dashboard provides a visually appealing and user-friendly experience. Prometheus enables flexible and powerful analysis of data from a variety of sources. Ceph integration is done through the sophisticated Ceph Exporter data collector.

You can discover each of these tools at their respective links:

Grafana: https://github.com/grafana/grafana

Prometheus: https://prometheus.io/

Ceph Exporter: https://github.com/digitalocean/ceph_exporter