Is it normal for initialization to occur when new?

Well, it seems I have no choice to wait.  Strange that no review I was able to find mentioned anything about a long initializing process when the unit is new. I would think they would mention that.  Several did talk about how long the rebuild process is after a drive is removed (as part of their testing of the unit), but that seems like a different case. I haven’t removed any drives and there haven’t been any abrupt power losses or hard shutdowns. The unit is on a UPS.