Collect HPE Storage Provider Tenant statistics for Array Exporter

[JoeRegnier-JDP]

HPE CSI Driver supports multi-tenancy. Nimble storage provider, in our use case, assigns folders per tenant to isolate and control access to pool capacity in the storage array. Volume and snapshot information is all available for the PVCs associated with the tenant controlled within the cluster.

A tenant is limited by protection templates, performance policies, usage limit, and overdraft limit. To effectively monitor, trend and alert when approaching limits, tenant specific metrics are needed.

Please consider expanding the metrics exposed by the Storage array exporter to include folder specific limits and usage.

[datamattsson]

Thanks for filing this issue. A tenant can use the array exporter (with their tenant account) to monitor their provisioned resources but it's not possible to monitor folder limits set by the storage admin.