InsightIQ Report: terms and definitions

Hi experts,

Recently customers have been asking on how to intepret the definitions that are being used by the InsightIQ report, e.g external network throughput rate, etc. Is there any document that will state the definitions of all the different terms used?

Also for the different node types, is there like a benchmark or watermark level for the different definitions? Like for e.g the expected level for disk latency for the different type of nodes.