I've suggested this in a previous post to a different poster but it might be relevant. It would involve a little bit of work but could prove useful if you wanted to tailor it.
Jorge de la Cruz has created a mini series on various dashboards and integrations with Grafana. this is a dashboard (all free) and reporting tool (Influxdb) which scrapes metrics from vcenter,vsphere,esxi etc. tags can be added and also if the storage is presented from a windows fileshare for example then the reporting tool can also be used on Windows servers to monitor "metrics from within Windows itself" if that makes sense?
A link to the datastore dashboard is below if you want to take a look,
https://grafana.com/grafana/dashboards/8162-vmware-vsphere-datastore/
Hope this may be of some use.
