I have four 500Gb disks I want to connect to a Pi for RAID setup. They are rated at 1A each, which should be the max current they will draw. I've connected them to this USB hub. The drives keep failing. If I plug in all four, one of them fails after a few minutes. When I try three, one of them failed after a day.
The drives fail temporarily. If I reconnect them and poweroff/on, they are operable again. When I say fail, I mean they start cluncing, and become unavailable.
I'm suspecting this is a current supply issue, and that the current is drawn from the Pi USB port and not the USB power source, or some combination of the two.
Could a solution be to cut the power wire (red) coming from the Pi USB cable to force use of the external power source?