One of my Storage systems (Powerstore 1000T, 2 node nvme appliance) started running over 50% for both nodes at the beginning of Feb. and it's not clear why. Bandwidth used by the VMWare environment it serves is low (~5MB/s) as is IOPS (250 IO/s) and both are lower than they were before the cpu spike started (which makes me think that performance may be affected since the VSphere environment was not changed at that time. I suspect there's some background task running that is consuming a lot of cpu... but the basic diagnostics in the web app don't appear to give me that level of granularity. 

Are there more advanced tools for seeing what a Powerstore environment is doing? It's been over a month which seems a long time for any typical housekeeping task.