Hi, What do people use to store per-RBD-image I/O stats? To retrospectively see which VM was keeping a Ceph cluster busy in terms of I/O, I'd like to track `rbd perf image iostat` and `rbd perf image iotop`-like metrics. I've looked at the LibreNMS plugin [1], Prometheus metrics in the manager [2], and Ceph ingestion in Elasticsearch [3]. None of them seem to export per-RBD metrics. I can't find much information about this use case on the mailing list either, though it's hard for me to imagine I'm the only one with this want. How do other users handle this? William David Edwards [1]: https://github.com/librenms/librenms-agent/blob/master/agent-local/ceph [2]: https://docs.ceph.com/en/latest/mgr/prometheus/ [3]: https://www.elastic.co/docs/reference/integrations/ceph