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Server for a boat (lemmy.world)

submitted 4 months ago by sailingbythelee@lemmy.world to c/selfhosted@lemmy.world

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Good day, friends. Since catching the self-hosting bug, I've set up a couple of Proxmox home servers with a bunch of services I enjoy.

Now I'd like to set up a server and local network on my sailboat so I can self-host servarr, pihole, and other services while traveling. The tricky part is that everything on the boat is 12V and I would rather not use an inverter, if possible. Also, it needs to be ultra-low power so I can leave it on at all times and not to deplete my batteries too much.

Criteria:

ultra-low power
Small form factor
runs on 12V
10 TB of storage plus ability to make full local backup
Capable of hosting servarr, audiobookshelf, freshrss, etc. via docker
HDMI output
Full local mirror/backup of the entire file system, including the media library.
We will have two laptops and two Android phones to access the server, so the server doesn't need to run a desktop environment.

I'll have a mobile wifi router and a cellular signal booster (or maybe Starlink eventually) for internet access. Since internet bandwidth will be limited and expensive while traveling, I don't want to have to re-download a massive media llibrary if the storage media fail. Thus, I want the media library to be mirrored or fully backed up or synced locally.

What hardware and Linux distro would you use in this situation?

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[–] HumanPerson@sh.itjust.works 3 points 4 months ago

For hardware, I would go with sata ssds for storage. I also would recommend a separate boot drive as it makes re installing without loosing data a breeze. You could go with a new processor from intel or amd, and make sure it has onboard graphics. You should also go into the BIOS, enable xmp (always do that. It's free performance), and look for power saving settings. You could go for arm, but most arm computers lack expansion options and that can mean you use USB for drives which is unreliable. I think dc atx power supplies are a thing, but I know nothing about them. I would recommend doing ext4 and a raid, ideally 6 or 10. That will give you stability (from filesystem issues) and good reliability. I know RAID is not a backup, but in this case it may be what you want. RAID is for uptime, and it would be able to usually buy you enough time to finish your trip, or you could even have spare drives onboard and fix it while you're out in like 10 minutes. Also, I would highly recommend researching how to power it well. Starting an engine can mess with the power and could fry a computer. I don't know if a dc ups is a thing, but if it is, get it.

For software, use whatever you want, mostly. I always use debian for servers, but proxmox would probably be fine. You can use powertop to make sure it runs efficiently.