Performance Advisor (and the NetApp Managerment Console GUI) had some challenges to visualize data effectively in a Clustered Data ONTAP environment; there are just too many ways to look at data due to the abstraction of frontend client work and backend storage work. Add in other new features we got like QoS statistics and it was better to start fresh, and that is what we did with OnCommand Performance Manager (OPM). The initial versions of OPM (1.0 and 1.1) were designed to solve troubleshooting use cases by conducting a root cause analysis and by looking at other impacted workloads (bully/victim analysis). In OPM 2.0 we added to it a variety of views of things like volume performance:
For many uses cases this is the right level of detail. If this isn't enough, we can export data to an external time-series database ("external data provider" in the OPM install guide). Or if you want even more then maybe Graphite + Grafana + Harvest (from the Support toolchest) would be a good match. I wrote a blog about this combo here: It all begins with data.
Hope this helps!
Storage Architect, NetApp EMEA