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Multiple HDDs in a RPi5 vanish (kbin.social)

submitted 6 months ago by [email protected] to c/selfhosted

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Hey, I'm really stumped by this issue so perhaps one of you folks might be able to help me out here. I run a little server on an RPi 5.i got for another project originally. So ce I cannot finish said project due to time constraints, I repurposed the thing into a little server. It's running smoothly so far with one really weird exception. Whenever I attach more than 1 HDDs to the pi and use at least 2 at the same time, both HDDs will start to fail, unmount and the whole USB hubs I connected them to will just disappear from LSUSB. Originally I thought this was a power issue but the weird behavior continues when I connect each HDD to it's own powered USB hub. I'm really at a loss as to what's happening. Any ideas?

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[–] [email protected] 0 points 6 months ago (5 children)

@Norgur Have you taken a look at this thread?

https://forums.raspberrypi.com/viewtopic.php?t=347894

Have you tried unplugging anything else connected to USB and then used only the powered hub(s) with multiple drives and does that work?

SSD or HDD?

[–] computabloke 2 points 6 months ago (1 children)

Problems with spinning HDDs on RPI are common. Possibly even on powered hubs they may spike more than rpis 1.2A USB max allowance. You may need a specialised hat, or better to switch to solid state storage?

[–] [email protected] 1 points 6 months ago (1 children)

Thing is that I got the HDDs lying around already. The hub supplies 5v/3A so powershould not be an issue... Yet who knows... I could try to power the HDDs from a USB power supply with a split cable and see if that helps

[–] [email protected] 1 points 6 months ago

Might be power. i had a 3.5 HDD external USB adapter with separate power plug. It would drop out under sustained use. Fix was providing higher amp power supply

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