I just ran into the issue myself. Did you happen to notice what bay is showing the working drive ? After getting an HP representitive out to our company it was found that the whole shipment of servers had the backplane installed improperly. If you look at the backplane, there are 4 metal clips that it rests on. Our servers did not have the 2 middle clips mounted in so only bay 0 and sometimes bay 3 would recognize. And since there is no "hardware" problem, nothing would come up in the diagnostics or Storage Manager. Maybe this will help you.




Hp Insight Diagnostics Download Windows Server 2012 R2