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How to auto remount external HDD after power loss to laptop server? (piefed.ca)

submitted 1 month ago* (last edited 1 month ago) by Lenna@piefed.ca to c/selfhosted@lemmy.world

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I'm running a Ubuntu server on my old laptop with an external HDD connected to it. The external HDD is powered independently from the laptop, as it is plugged into the wall.

During a power outage, my laptop remains operational due to its battery, but the HDD shuts down. When power is restored, my laptop does not automatically remount the HDD, and I have to reboot the system manually to access it.

Does anyone know how I can resolve this issue?

Edit: Not sure if this added context changes anything, but this is the HDD I'm using. It's a 3.5" HDD that gets its power directly from the wall.

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[–] GeorgimusPrime@lemmy.world 2 points 1 month ago* (last edited 1 month ago) (2 children)

There are DC UPSes that can supply 12V and are typically used to keep wireless routers and security cameras running for a few hours during power failures. They plug into the mains and are about the size of a 3.5" HDD.

Most USB power banks power cycle when the switch between charging/supplying/pass through mode, so if you use them for computer equipment they will lose power for a few seconds when the mains comes on or off.

Edit: DC UPSes are also much cheaper than standard ones.

[–] Lenna@piefed.ca 2 points 1 week ago (1 children)

Hey there! A moderator just restored my post and you probably never got the notification for my previous comment. I was just wondering if this is the UPS you had in mind.

[–] GeorgimusPrime@lemmy.world 2 points 4 days ago (1 children)

Hi! That looks way more expensive though it might work for you. This is what I had in mind: https://www.amazon.ca/Battery-Uninterruptible-8000mAh-Circuit-Protecting/dp/B0F66B34WN

[–] Lenna@piefed.ca 2 points 3 days ago

Unfortunately, my HDD doesn't support those ports so I guess I'll just suck it up and spend the extra $20. Thanks for the help! :)

[–] Lenna@piefed.ca 1 points 1 month ago

Would this be something you're talking about? It's the cheapest one I can see on Amazon here in Canada.