Summary: I bought this device based on the recommendations of a friend. It is by far the worse technology purchase I have made. I installed 4 WDC WD2003FYYS Enterprise class drives to make sure I had QNAP's recommended drives. I have updated to the latest firmware: 3.8.1 Build 20121205. 1. The unit does not always power up properly. 2. When it does not power up I have to do a hard power-off. This requires a volume check when the unit actually powers up. 3.