A product badmouthing, because the user is not on the manufacturing side of "DROBO" to the terms of use (in particular, the employed drives) adequately informed, I was very surprised. There are clear recommendations of the manufacturer. I have noticed this. As a result, I have a well-functioning RAID system. Are used as hard drives Western Digital WD7500BPKT Black 750GB and as "accelerator" when reading Plextor PX-128M5M SSD 128GB mSATA. It works very quickly and so far zuvelässig. The adjustment and control over the Drobo Dashboard are clearly and gives a good overview of the status of the device. So overall a great device. When the continuous operation was to show problems, I will add it here accordingly.