I am trying to identify the source of the performance issues currently crippling our V3160. We are hosting multiple CIFS-mounted filesystems and FC-attached VMFS datastores, and we are constantly seeing latency well in excess of 100 ms. When this happened in the past, we were able to point to oversaturated back-end disks as the culprit, but I cannot find that issue now. We have Operations Manager and Performance Manager; is there anything I can look at which will indicate which back-end LUN or LUNs are causing this issue? We tried a POC with Balance (formerly Akorri BalancePoint), but it was unable to identify the cause of our performance issues.