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Thomas Jensen @thomasjsn.bsky.social · Feb 13

Now that everything has been moved away from my old Hypervisor — it can be repurposed as a dedicated #ProxmoxBackupServer

#homelab

Thomas Jensen @thomasjsn.bsky.social · Feb 12

Powered up the new server yesterday, and migrated all VMs and containers over. It's not running as my main hypervisor 😎 Next is to repurpose the old server as a dedicated backup server, running PBS.

Took a few thermal images of the new server before closing the lid.

#homelab #server

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Thomas Jensen @thomasjsn.bsky.social · Jan 29

The resurrection of my file server is complete 🍻 blog.cavelab.dev/2025/01/zeta...

#homelab #zfs #fileserver

Zeta is back!

In the fall of 2022 I turned off Zeta, my file server, due to the extreme price of electricity. I migrated all the data to a 3x18 TB raidz1 pool on Alpha instead. But last year I brought it back — and...

blog.cavelab.dev

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Thomas Jensen @thomasjsn.bsky.social · Jan 28

When testing #Netdata last year — I noticed a constant 1 drop/s on inbound packets. It turned out to be RRCP (Realtek Remote Control Protocol) broadcasted frames from a TP-Link switch with enabled "loop prevention". blog.cavelab.dev/2025/01/netd...

Netdata warnings — tracking down dropped packets

When I was trying out Netdata last year — I noticed I had lots of inbound_packets_dropped_ratio warnings, on multiple nodes. Time to investigate 👇

blog.cavelab.dev

Thomas Jensen @thomasjsn.bsky.social · Jan 27

After only a few evenings' work — I am getting close to seeing my desk surface again 🥳

#homeoffice #electronicslab

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Thomas Jensen @thomasjsn.bsky.social · Jan 21

Lately I've been thinking a lot about fire detectors. We have Nest Protect in the house, works great. But there are locations where they aren't suited; attic, garage & shed. What to do there? Integrate into my DIY security system, but is it foolproof enough? I have acquired some things for testing.

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Thomas Jensen @thomasjsn.bsky.social · Jan 16

Here is the #video implementation for my blog — #gohugo and #BunnyStream. blog.cavelab.dev/2025/01/bunn...

Moving videos to Bunny Stream

I’ve looked into different video solution for this blog before — and, at the time, settled on using Coconut.co for encoding, AWS S3 for hosting, and Video.js for playing. Bunny Stream was on the table...

blog.cavelab.dev

Thomas Jensen @thomasjsn.bsky.social · Jan 14

The #fiber between the house and garage is finally operational 🥳 blog.cavelab.dev/2025/01/fibe...

#homelab #networking

Finally getting fiber between the house and garage

Getting network to the garage is a story with many chapters. I started out with Wi-Fi mesh, then CAT6 — and now, finally, fiber!

blog.cavelab.dev

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Thomas Jensen @thomasjsn.bsky.social · Jan 9

Using a #Shelly Plus Plug S to monitor the #homelab power — I got much better results using an #MQTT sensor than the integration in #HomeAssistant 🔌 blog.cavelab.dev/2025/01/shel...

Using the Shelly Plus Plug S to measure homelab power

I’m using a Shelly Plus Plug S smart plug to measure the power usage of my homelab. I added it as a device in Home Assistant — and the power readings began! Kind of… Within a few days; I noticed somet...

blog.cavelab.dev

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Thomas Jensen @thomasjsn.bsky.social · Jan 8

I've added navigation buttons to my #gohugo series taxonomy, making it much easier to navigate ⏮️⏭️ blog.cavelab.dev/2025/01/hugo...

Implementing series navigation buttons — in Hugo

As I have written before; I like the concept of blog post series. Break a large topic, or ongoing project, into multiple posts — while maintaining the chronological order. But one key factor for a suc...

blog.cavelab.dev

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Thomas Jensen @thomasjsn.bsky.social · Jan 7

On my #RaspberryPi security alarm: I will be replacing all #Aqara motion sensors with #PhillipsHue — they seem to be more reliable, have better battery life, short cool-down and I like the mounting options better. 3D printed corner mounts!

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Thomas Jensen @thomasjsn.bsky.social · Jan 7

Sometimes I do non-computer related projects — like turning an old oak tabletop, from my friend's barn, into a pub table. blog.cavelab.dev/2025/01/pub-...

#WoodWorking

Making a pub table — with an old oak tabletop

Sometimes, when I’m not too busy with my homelab or some other electronics project — I pretend to be a woodworker or carpenter. This time I made a pub table, using an old kitchen tabletop of oak. I go...

blog.cavelab.dev

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Thomas Jensen @thomasjsn.bsky.social · Jan 6

My #homelab page is now up to the with all the recent changes 🖥️ blog.cavelab.dev/homelab/

Homelab

Most of my computer projects includes, or revolves around, my homelab — a 29U, 600x600 mm, rack in my home office.

blog.cavelab.dev

Thomas Jensen @thomasjsn.bsky.social · Jan 4

The computer page for the new #server is published 🤓 blog.cavelab.dev/computers/be...

Server: Beta

HP Z440 Workstation — Hypervisor running Proxmox VE. Located in my homelab rack.

blog.cavelab.dev

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Thomas Jensen @thomasjsn.bsky.social · Jan 3

*notably for me

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Thomas Jensen @thomasjsn.bsky.social · Jan 3

The @mikrotik.social CRS510-8XS-2XQ-IN power draw isn't so bad:
Max power consumption 45 W
Max power consumption wo/attachments 27 W

Depends on the optics of course. 100 Gbit has it's own challenges — most notably for be is the required PCIe width and speed to accommodate enough bandwidth.

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Thomas Jensen @thomasjsn.bsky.social · Jan 3

I solved my #wireguard problem — slow egress through my #mikrotik #chr. I was "working" with the @kagi.com Assistant while troubleshooting. My first time using an AI assistant, I am fairly impressed 🙂 blog.cavelab.dev/2025/01/opti...

#homelab #networking

Optimizing WireGuard on MikroTik CHR

I’ve been having a strange problem with outgoing WireGuard traffic, the problem has probably always been there — I just haven’t noticed, until now. Outgoing WireGuard traffic is very slow, while incom...

blog.cavelab.dev

Thomas Jensen @thomasjsn.bsky.social · Jan 2

The #server is up, with 4xNVMe (mirror #ZFS special device, Intel Optane ZFS SLOG, and #Proxmox datastore). 2x8 TB HDDs, and 2x25 Gbit NIC, with cooling.

Now to configure the ZFS pool, and I need a #25Gbit switch.

#homelab

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Thomas Jensen @thomasjsn.bsky.social · Jan 1

Finally managed to get the blog post about the underground conduits between the house, garage, and shed published. More on the #fiber in the not-so-distant future. blog.cavelab.dev/2025/01/unde...

Underground conduits to garage and shed

Two years ago we dug and laid three conduits from the house to the garage, and from the garage to the shed. Primarily to get more power to the garage — and any power to the shed. I used the opportunit...

blog.cavelab.dev

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Thomas Jensen @thomasjsn.bsky.social · Dec 30

I'm using #Shelly PRO 2 and a 24V relay to control my garage door from @home-assistant.io. The Shelly controls the interlock, allowing me to disable the motor, and button push — activating movement. The 24V relay is active when the door is moving, triggering an input on the Shelly.

Thomas Jensen @thomasjsn.bsky.social · Dec 27

When we dug new power to the garage and shed a few years ago, we put down an additional conduit for #fiber. Currently have single mode 1 Gbit fiber from the #homelab rack to the garage. I have the optics for 10 Gbit, just need a new switch in the garage.

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Thomas Jensen @thomasjsn.bsky.social · Dec 27

My @raspberrypi.com security alarm will close the main water valve and cut power to the dish washer if the water alarm is triggered. I'm using #Aqara water sensors, and a manual override switch in the entryway.

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Thomas Jensen @thomasjsn.bsky.social · Dec 27

My cable management isn't quite there yet...

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Thomas Jensen @thomasjsn.bsky.social · Dec 27

I also have a dual 25 Gbit/s NIC and Intel Optane NVMe ready to install. I suspect this #zfs pool is going to be pretty fast 🤓

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Thomas Jensen @thomasjsn.bsky.social · Dec 27

Installed proper rails on my #fileserver, freeing up 1U. Rearranged the #homelab rack to fit the new Z440 server.

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