If anyone have the document , which has the threshold values (Max & Min) of performance metrics like Avg Read Timeout , Avg Write Timeout , IOS per Sec etc  for a VMAX / DMX ..please share ..or whar are the threshold values...?

We are pulling the reports from SPA or PM ..but to analyze the grapths or reports , we should know the threshold values with that we can say whether the storage array is having performance issue or not....