2

I had two drives on my Raspberry Pi 4 B and they kept being unmounted, I moved one to my router and it seems to be working fine now...
I read about max_usb_current=1 doesn't make any difference on Raspberry Pi 4 B, but is there any chance I could put lots of drives on my Raspberry Pi and have them stable? I'm using the official power supply.

Improve this question
3
  • 2
    Read this bit on powered hubs.
    – Seamus
    Feb 11, 2020 at 19:15
  • Like @Seamus said, try to use a powered hub. Make sure it's been tried before as I've had trouble with a couple myself
    – user96931
    Feb 11, 2020 at 20:34
  • You can't run two usb powered drives on an Rpi 4. The current limit is 1.2 A shared between all USB ports, and one drive alone will take up to 1 A on spinup and maybe on seek, so you do the arithmetic. I tried 2 drives and got the same thing, and then I read the spec.
    – Michael Harvey
    Feb 11, 2020 at 22:47

1 Answer 1

Reset to default
1

As others suggested, the problem was that there wasn´t enough power to feed 2 hard drives, so using a usb-hub with power adapter solved the issue

Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.