The sensor is located on the case (not near the exhaust) of the server. With the structure of my appartment this is the only place I can realistically put my Server but sadly also the hottest place in my appartment.
The outside temperature is supposed to reach 36°C today so I expect the ambient temp for the server to rise another 2-3 degrees.
I hobestly don’t know how much of this temperature is the server and how much is just it beeing in a badly ventilated spot under the ceiling.
I don’t really do disk spindown as they are active most of the time anyways (Zfs spends most of the time scrubbing).