this post was submitted on 17 Jul 2025
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UPS: how to turn the server back on? (lemmy.world)
submitted 1 week ago* (last edited 1 week ago) by peregus@lemmy.world to c/homelab@lemmy.ml
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I've installed an APC BX950MI-GR and connected it to my Proxmox server via USB. It works: it turns off the server after x minutes after the power loss and it gets turned off by the command upsdrvctl shutdown, when the powers come back on, the UPS turns on and so does the server. The problem is if the power comes back after the server receive the power off signal and before the UPS powers off, in this case the UPS simply goes back in the normal state and the server...stays off. How can I turn it back on? Thanks!

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[–] bri@lemmy.ml 2 points 1 week ago (1 children)

If you’ve got SFP+ onboard it sounds like you have a relatively serious server. Does it have IPMI? You could have a low power device like a Pi issue and IPMI command to power on.

[–] peregus@lemmy.world 1 points 1 week ago

Negative, it's "just" an HP Elitebook with a PCIe SFP+ board.