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Cake day: June 25th, 2023

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  • typically you only need one power supply to run it, once you move to redundant power you can use the second one in case the first one fails. when you plug both in it will just balance across both until one fails.

    in my opinion, hardware should only be hypervisors that run virtual machines, then you can provision VMs, similar to using VPSs. going this route you will need a vga monitor for initial setup, eventually everything is done over the lan with a web ui or ssh.

    i use proxmox which is Debian based for the hypervisor.

    As far as what you do with it, is that you can in theory replace the VPSs or test software in your lan.

    to compare, i have my router (vyos), homeassistant, a docker server for hosting small services, a network lab (gns3), windows and mac VMs, and more running on a cluster that is using similar hardware.







  • make sure it’s configured for clean shut downs before your battery runs out, auto power up on restoration, and hope it doesn’t happen. you will eventually have an outage that outlasts your batteries.

    I have a large string of batteries from an old telco office, that runs my rack for 14hrs (calculated, I shut everything down around this time) and that did not last for the 2-3 day outage we had after a storm. Without a generator, you will inevitably have an outage, but if you are prepared, then you can mitigate any damage. use NUT if you need to shutdown or power multiple devices from one monitored UPS














  • jake_jake_jake_@lemmy.worldtoSelfhosted@lemmy.worldServer for a boat
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    9 months ago

    i didn’t downvote but 17v on a 12v battery maybe seems a bit high. I’m more used to about 7-14% over (maybe up to 14v on a 12v batt) when charged/floating but i don’t use solar anywhere currently, and i usually work on 48v systems. i normally expect to see about 54v on a fully charged battery string (13.5v per battery x4) with the rectifiers running.

    i also second the opinion of running an automotive PSU for this situation.

    edit: i looked it up since i was curious, some “12v” solar panels can output between 16-20v, but it’s recommended that you would use a charge controller, especially if you have lead-acid batteries