I have 2 Seagate IronWolf Pro 8TB - ST8000NT001 and 2 Seagate IronWolf 4TB - ST4000VN008
I got this DAS as I was using separate USB cases and my drives were overheating so looked to this model with its active cooling..
I have now had 7 wipes on all 4 drives in 3 days.
I get either an unallocated drive with out any partitions or a drive with two unallocated partitions with the first one being exactly 2048GB and the second one being the remaining space on the drive.
I also ended up with 2 drives with the same GUID
I was told it could be sleep but I have been in the middle of coping and the HDD has been very busy either doing surface scan or coping the data back.
I have sent USB hub controller to not sleep in Device Manager and HDD sleep after 60 minutes in the power profile so it should not be sleeping.
Also when the drives fail there are yellow errors for Portable device with he Drive Name in device manager. If I rescan for hardware changes the drives disappear from Disk Manager and Device Manager

EDIT: I just discovered that powering down the DAS after the devices are no longer present in the Device Manger seems to allow the USB Detect New Hardware to rediscover the drives with out any partition corruption. That means only 5 wipes so far.


I need to solve this or return it.



