As basis of comparison I just reset our data warehouse and it took 5hr 33mins. I don't know what the time is dependent upon or how long it is expected to take on average but just figured I'd post it here in case other people are interested.

There is a subject area in FAW common models called "Common - Warehouse Refresh Statistics" that you can build a report off of to find out some basic information about the data refreshes that are occurring. One data element available in this is something called "Job Identifier" (e.g. 23041406368552). I am not sure where…