Category Archives: Hardware

FreeBSD: Home NAS, part 5 – ZFS pool, datasets, snapshots, and ZFS monitoring
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27 December 2025

Continuing the “for fun and profit” journey of setting up my home server with FreeBSD on a Lenovo ThinkCentre M720s SFF. And today, finally, we will do the main part – set up a ZFS pool on real disks, look at working with datasets, encryption, snapshots, and monitoring. All posts in this blog series: FreeBSD:… Read More »

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FreeBSD: Installation on a ThinkPad X200 Tablet in 2025
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23 December 2025

I’ve been a ThinkPad fan for a long time; I really love their entire lineup. Recently, I came across the X200 model, which was manufactured starting in 2008 – I just saw a picture somewhere and really wanted it for my “collection.” Unexpectedly, it was even available for sale in Ukraine, so I bought this… Read More »

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Kubernetes: find a directory with a mounted volume in a Pod on its host
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18 May 2025

We have an AWS Elastic Kubernetes Service with the VictoriaMetrics stack deployed (see VictoriaMetrics: deploying a Kubernetes monitoring stack). I need to migrate the data from the old VMSingle Pod to the new one on the new cluster, and to do this, I need to find VMSingle’s data on an EC2. Note: regarding the migration… Read More »

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Linux: connect Bluetooth headset with bluetoothctl and Blueman
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2 February 2021

Recently, I bought a Sony WH-1000XM3 headset. In general, they are great but need to connect them to my laptop with Arch Linux. The documentation about Bluetooth on Arch Linux can be found here>>> and here>>>: Installation Install necessary packages: [simterm] $ sudo pacman -S bluez bluez-utils [/simterm] Check kernel’s module: [simterm] $ lsmod |… Read More »

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Redis: fork – Cannot allocate memory, Linux, virtual memory and vm.overcommit_memory
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28 August 2019

Currently, I’m configuring a Redis as a caching service for our application and during that, I faced with the question: do I need to set vm.overcommit_memory to the value 1, i.e. disable it – or not? The question is quite old for me, see The story, but only now I found time to get to… Read More »

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