Description of problem (please be detailed as possible and provide log
snippests):

• Is it possible to add PVC usage vs. capacity for PVCs backed by RBD or Cephfs storageclasses?

• Something similar to this:

https://gitlab.cee.redhat.com/cee-sbr-shift-performance-project/performance-guide/-/blob/main/Persistent%20Volumes.md

• We in support get lots of requests (I can get the case numbers if hard metrics are needed) from customers that are inquiring about how much space their ODF provisioned PVCs are using relative to the allocated space of the PVCs. It's frustrating (and quite frankly embarrassing) having to hand Prometheus queries to the customer to calculate this data. I and many others in support are of the opinion that having this data available in the ODF dashboard would be extremely useful for the customer.

• Please let me know if you need any further clarification on this request.

Thanks