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Over 200,000 Servers in One Place! Visiting Hetzner in Falkenstein (Germany)

der8auer EN
Documentaries
YouTube
6 HN users recommended this documentary6 months2021–2025 score 6
Years with an HN recommendation, 2007–2026

HN points to it whenever Hetzner comes up, as the best look inside their unusual, semi-custom and low-cost data center setup.

Overclocker der8auer tours Hetzner's Falkenstein data center in Germany, showing custom racks, own mainboards, passively cooled servers and ATX-style cases on shelves.

“There's a great YouTube tour of one of their data centres here” (HN, 2023)

6 recommendations · 10 citations · 1 critical · Documentaries · partly dated

17 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@littlecranky67 Nov 2021 Recommends
on HN thread Hetzner Cloud Goes US (Ashburn/VA)
There has been a nice YT video recently showing how Hetzner operates their DC and their servers: [this video] Was quite surprised that they use custom built server racks with their own custom-made mainboards delivered by OEMs. They even have their own long-term Fan testing rigs and custom HDD failure check setups.
Shows custom racks, mainboards, fan and HDD testing
@trollied Mar 2023 Recommends
on HN thread Hetzner Launches Three New Dedicated Servers
There's a great YouTube tour of one of their data centres here: [this video] 'Over 200,000 Servers in One Place! Visiting Hetzner in Falkenstein (Germany)' The channel is well worth a subscribe too.
Great tour of a Hetzner data centre
@dpeckett Jul 2023 Recommends
on HN thread Fly.io Postgres cluster down for 3 days, no word from them about it
Read more
Couldn't agree more, I think Hetzner is probably Europe's best bet on a hyperscaler. One of the more telling indicators IMO is their growing market share outside of the EU/DACH. To add on to the comments about Hetzner building their own custom hardware, they also custom built their own software stack. They rejected the hype that was OpenStack and worked diligently on their own hypervisor platform (that they are incredibly secretive about) and that appears to be paying off in spades for them. Most sovereign cloud plays end up being suffocated by the complexity, and incoherence, of the OpenStack ecosystem. It just becomes impossible to ship. I know Hetzner is working like crazy on a managed Kubernetes offering atm, I think when that lands it could be very interesting. For a fascinatingly different take on how to build a datacenter: [this video]
A different take on how to build a datacenter
@wongarsu Feb 2024 Recommends
on HN thread Hetzner GPU Server
The best resource I know is a tour of one of their data centers. Around minute 6 you get some nice views on their current-gen racks, and later in the video you see the back side, followed by the assembly of the servers. [this video]
Tour of a Hetzner data center with racks and server assembly

Citations, criticism and jokes

@dt3ft Jan 2022 Cites it
on HN thread I got pwned by my cloud costs
Not much to explain, you're absolutely right. Hetzner would have been a much wiser choice here, but advocating any cloud provider at this scale probably has its perks too or he wouldn't be burning his money. Then again, perks only go so long and at some point do come to an end, so this is why he may be writing about costs right now. Take a look at their datacenter in Germany: [this video]
Tour of Hetzner's German datacenter
@dhx Mar 2022 Cites it
on HN thread OVHcloud fire: SBG2 data center had no extinguisher, no power cut-out
Read more
Hetzner Falkenstein was toured recently by a YouTuber and I didn't spot any fire suppression systems in the video [1]. OVH SBG1 (which was partially destroyed by the fire that wiped out SBG2) used shipping containers which also didn't appear to have any fire suppression systems [2]. By contrast, the typical data centers people know which have fire suppression systems appear to have much of their key electrical equipment (and control systems) located in the same area or adjoining rooms of the same facility [3] [4] [5] [6]. In fact, there is even a video recording of a UPS failure [7] showing a lucky case where no one was injured and not too much damage was caused. The employee lingered in the room when they should have immediately left at the first sign of danger. Arc flashes are a scary possibility as shown in [8] and [9] because of the need to switch multiple megawatts of electricity through complex power systems that includes UPS battery banks and automatic diesel generators. There are video recordings demonstrating how fire suppression systems work [10] [11] and a description of how a data center would be designed to respond to a fire (including closing ventilation dampers) [12] [13]. I'm sure fire suppression systems are not cheap, but in the grand scheme of a data center full of millions of dollars of equipment (not to mention cost of customer downtime) surely it would make sense to install them. [1] [this video] [2] [link] [3] [link] [4] [link] [5] [link] [6] [link] [7] [LIN
Used to note absence of visible fire suppression
@sascha_sl Jul 2022 Cites it
on HN thread My Poor Experience With Azure (or why I'm sticking with AWS)
Here's a Hetzner DC: [this video] Here's a GCP/Google DC: [link] Not to speak of network/power redundancy, managed hardware (like not having to prove to your ISP that their memory or disk is broken!), lots of services besides just metal... HN is actually really in love with putting things on Hetzner, OVH and co. It works and it's cheap. But it wouldn't be a good experience when things break, and you better have really good backups and plans to fail over to another box when something bad[1] happens. [1]: [link]
Example of a Hetzner datacenter versus Google's
@Strom Mar 2023 Cites it
on HN thread Hetzner Launches Three New Dedicated Servers
They have ATX cases on shelves. You can take a look at this tour of their datacenter [1] for more insight. ATX cases are visible around the 3 minute mark. -- [1] [this video]
Shows ATX cases on shelves in the datacenter
@ps Jul 2023 Cites it
on HN thread Fly.io Postgres cluster down for 3 days, no word from them about it
Read more
[this video] Datacenters in my country usually had some rooms with tower servers 20 years ago here, well my first colo was for the tower server I brought in the large backpack:-). But density requirements, cold/hot aisles etc. prevailed and towers are generally considered inefficient for the datacenter purposes. And then you have Hetzner datacenter that probably all people running DCs I know would ridicule, but they would not be able to respond to fan replacement at the same time. I wonder how many rack server chassis are recycled each year because the manufacturer just won't let you reuse them with new motherboard, power supply due to new shape, design, ports placement etc.
Tower-server style datacenter versus rack density
@jsheard Feb 2024 Cites it
on HN thread Hetzner GPU Server
There's some videos out there showing off their custom motherboards, it's an odd mixture of standard-ish consumer ATX but stripped down to the absolute bare essentials and with some components rearranged for better airflow in racks chassis they also build themselves: [link] Another video showing the custom racks and other infrastructure: [this video]
Shows Hetzner's custom racks and infrastructure
@systemvoltage Apr 2022 Pushes back
on HN thread Hetzner Cloud – Data loss incident
I came across tour of Hetzner datacenter[1] and it looks like a completely unprofessional setup, like castle on stilts. Does not inspire confidence. [1] [this video]

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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