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Expanding Linux MD RAID: How to Resize Your Array Safely
Linux MD, also known as the Multiple Device , is a software RAID (Redundant Array of Independent Disks) system used in Linux. It allows you to create virtual devices by combining multiple physical devices, such as hard drives or partitions, into a single array. This array can provide redundancy, improve performance, or both, depending on…
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How to put drives to sleep in OpenMediaVault?
By default, OpenMediaVault NAS software will prioritize performance over power consumption and noise levels of disk drives. It makes sense when running heavily loaded NAS, but for home usage it’s an overkill. If my NAS is used only a few times a day, it makes no sense to keep HDDs spinning all the time. Luckily,…
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How to update the Raspberry Pi bootloader firmware
Raspberry Pi needs a special software to work. Yes, operating system in important, but bootloader firmware is even more important. Without it, RPi would not be able to boot or support external devices. From time to time, it’s worth to update the bootloader firmware to get new functions and fix bugs. This article is a…
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Home Assistant in Kubernetes the simple way
There is almost nothing better than running your smart home on your own server! And it’s hard to find better smart home system than Home Assistant itself. I used to run my instance of Home Assistant on a QEMU virtual machine inside old rack server (Dell R620 with intel Xenon E5-E2630L, 64GB RAM and 10TB…
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Managing MicroCeph Clusters: How to Add & Remove Hosts
What is Microceph and Ceph Ceph is a highly scalable, open-source distributed storage platform. It supports object, block, and file storage, and is designed for large-scale, enterprise-level environments. Ceph provides robust features for redundancy, fault tolerance, and scalability, making it suitable for complex and demanding storage needs. MicroCeph is a lightweight deployment and management tool…
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How to Add Swap to Raspberry Pi for Better Memory Management
By default, Raspberry Pi Linux images come without swap enabled. And it makes sense! SD Cards used as a default are not suited to be used with swap! They would wear out too fast and in general, would not improve performance that much. However, with new generations of Raspberry Pi, where you can install operating…
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INAV Ez-Tune Cheat Sheet
Click to download PDF version
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BLHeli_32 is dead, killed by the war in Ukraine
Hm, to be honest, I’m not sure what to think about it and the fact that BlHeli AS (company that develops and sells BLHeli 32 licenses) is closing operations as it was impacted by the export control regulations towards Russia. In other words, sanctions. We will not go into geopolitical aspects of things, but let’s…
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iFlight Defender FPV drone INAV target
If you own a iFlight Defender 25 or any other iFlight FPV drone with a Blitz F722 X1 flight controller and you would like to try INAV with its superior GPS capabilities, fear not, I have good new for you. You can download INAV 7.1.1 files for the iFlight Blitz F722 X1 flight controller from…