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A low power 1U Raspberry Pi cluster server for inexpensive colocation

https://github.com/pawl/raspberry-pi-1u-server
56•LorenDB•3d ago

Comments

dnemmers•3d ago
Maybe it’s just me, but I can’t imagine this thing staying together in one piece after being shipped. Too much double-sided tape and kludging.

Could work well at home, however.

dnemmers•3d ago
Previous comments:

https://news.ycombinator.com/item?id=27862967

arnon•3h ago
I like the idea but this is not going to last long

Good start though!

crinkly•3h ago
I’ve found colo companies to be pretty fussy about what hardware they will accept. Ours would reject this.

Edit: and problem with micro clusters like this is always the IPv4 costs.

petesergeant•3h ago
I was going to ask, if colos providers will allow a hacked together chassis like this, what’s to stop someone sending them an intentionally or unintentionally destructive device?
15155•1h ago
The same thing that stops most bad behavior: the threat of legal action afterwards.
sneak•35m ago
You can do that with the mail now. It’s not an additional threat.
postpawl•3h ago
Project author here. This project is 4 years old at this point, and now it probably makes more sense to use Mac minis or mini pcs. I also wouldn’t rely on cheap colocation for anything security sensitive or critical. They gave my same block of IPs to another customer at some point and there were issues with IP conflicts (eventually got resolved).

It lasted for about 3 years and the colocation company went bankrupt and got bought by another company, so they returned the hardware. I’m surprised a technical failure didn’t kill it.

tonyhart7•3h ago
Yeah with 30 bucks a month for co loc, I cant expect them to run for years

even if they can sustain that, how the heat and energy health for that cheap building

noosphr•2h ago
Do you know what the most cost effective hardware for general internet stuff is currently? I do ML and have to deal with removing tens of kilowatts from a small closet when it comes to on prem stuff - mainly for compliance reasons - and I have no idea what good, cheap low power hardware for web, sql and similar servers is.
p0w3n3d•1h ago
Mac minis are quite expensive. I'm trying to rebuild my home server and it will be probably Chinese minipc Ryzen 5700u, still tdwp 25 IIRC
sneak•38m ago
They are indeed expensive, but wow are they fast, and they have 10GE options.
youngtaff•19m ago
They’re not too badly priced if you buy them used… no where near as cheap as a one of the small Lenovos, Dells or HPs though or as easy to upgrade

What I really want is a IP KVM that connects to a MacMini using a single Thunderbolt port for everything - power, video, keyboard and mouse

louwrentius•35m ago
Thanks for sharing.

I came to a similar conclusion: TiniMiniMicro 1L PCs are in many ways a better option than Raspberry Pis. Or any mini PC with an Intel N-series CPU.

asteroidburger•3h ago
Only 16GB of DDR4 and 1.2TB of storage is not exactly a lot, especially when it’s spread across all of those nodes.
tgv•2h ago
What do you expect to run on them then? I run 3 user facing services plus their test environments plus the database on the same 8GB server, and half of the memory is free. The database takes about 10GB (growing slowly). There's also a 10GB media directory that grows slowly. Most of it is images, I think, and videos are short. But it'll be quite a while before reaching 1TB.
hawk_•3h ago
What is the use of colo with an arbitrary provider? (Asking as I have only heard of colo in the context of say an exchange or something else specific)
msh•3h ago
You get your server hosted in a real data center.

It quite common, a stepping stone between using rented hardware and having your own data center.

hawk_•2h ago
Oh ok so colo here means bring your own hardware.
Catbert59•3h ago
In 2025 I'd go for an Intel n100/n150/n305 with 32GB RAM (in officially supported). If nothing rotates nothing can break.

At work we have ~10 of these passive cooled TopTon n100 with their 5x Intel i226-IV 2.5GE interfaces laying around for emergency router setups. They are great for a lot of things.

But be careful: starting with the n150 you will need active cooling.

rented_mule•1h ago
100%!!!

I have an n305 with the CPU thermally bonded to its small aluminum case with a quiet 80 mm Noctua fan screwed into the fins of the case. The manufacturer on Ali Express said the fan is optional, but it can get to ~85°F in the room where the computer is, so I want to be careful. At idle, the CPU reports 5-10°F above the room's temperature.

It has 10 TB spread across 3 SSDs and 2 x 10 TB spinning drives attached. It's a Time Machine target for a handful of Macs and a Borg Backup target for several machines, including some across the internet using Tailscale. It's also running Home Assistant with AppDaemon (with dozens of little apps), Frigate (object detection for 3 Ethernet-connected cameras using a Google Coral TPU over USB), Paperless-ngx (15 GB of PDFs), LibrePhotos (1.2 TB of photos), Syncthing, Tiny Tiny RSS, a UniFi Controller, distinct PostgreSQL instances for various of those, and more. I count 21 Docker containers running right now, and not everything is containerized.

The spinning drives are powered down with a smart plug for all but 1-2 hours at night for backups. With those off, the thing sips power... 10-15 W most of the time with occasional spikes up to ~30 W when LibrePhotos is doing facial recognition or Paperless-ngx is updating its ML models. It never feels slow. I've been running one or more servers at home for 30+ years, and this single machine handles everything so much better than any combination of machines I've had.

mvip•2h ago
If you like this stuff, you should check out what the guys at Mythic Beasts are doing. They’re squeezing a ton of Raspberry Pi’s into racks. They also host the Raspberry Pi website on pi’s.

We used them for a while and there are some photos here https://www.screenly.io/blog/2023/05/25/updated-qc-rig/

procaryote•2h ago
Pretty fun!

Pi's are powerable from the header pins, so you could save the usb adapters and route power directly from the relays to the power pins.

I'd also be tempted to add a way to access the serial consoles and the power button-equivalent pins of the pis for a lom-equivalent. It might be doable with a pico or two.

Nowadays with pi5s you could also of course hook a m2 board up to the pci lane and skip the m2 enclosures.

I'd personally prefer a recessed push-button power switch too; the switch you use would make me nervous something would drop on it and turn the system off

pluto_modadic•1h ago
Could be fun for an ipv6 cluster

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A low power 1U Raspberry Pi cluster server for inexpensive colocation

https://github.com/pawl/raspberry-pi-1u-server
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