Diamond is a python daemon that collects system metrics and publishes them to Graphite (and others). It is capable of collecting cpu, memory, network, i/o, load and disk metrics. Additionally, it features an API for implementing custom collectors for gathering metrics from almost any source.
Coverage remained the same at 24.394% when pulling 63418b215a81b9cbc8a56e165855354067b0d59d on itblast:diskusage into 0f3eb04327d6d3ed5e53a9967d6c9d2c09714a47 on python-diamond:master.
https://wiki.hetzner.de/index.php/NVMe/en