Truenas Scale - how to use same device as cache VDEV in two pools at the same time

Truenas Scale - how to use same device as cache VDEV in two pools at the same time

Truenas 25.04 CE used for this guide TrueNas philosophy is “1 device - 1 assignment”. So by doing this we are going off-piste and who knows what could happen. Please proceed only if You have backup of Your data and You know what You are doing. Identify the SSD with the command lsblk For instance: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS sda 8:0 0 10.9T 0 disk └─sda1 8:1 0 10.9T 0 part sdb 8:16 0 3.6T 0 disk └─sdb1 8:17 0 3.6T 0 part sdc 8:32 0 3.6T 0 disk └─sdc1 8:33 0 3.6T 0 part sdd 8:48 0 3.6T 0 disk └─sdd1 8:49 0 3.6T 0 part nvme1n1 259:0 0 119.2G 0 disk ├─nvme1n1p1 259:1 0 1M 0 part ├─nvme1n1p2 259:2 0 512M 0 part └─nvme1n1p3 259:3 0 118.7G 0 part nvme0n1 259:4 0 953.9G 0 disk └─nvme0n1p1 259:5 0 951.9G 0 part nvme2n1 259:6 0 238.5G 0 disk we’ll take the example with nvme2n1 and we’ll use the parted command for it: ...

June 20, 2025 · 4 min · Edvard
How to optimize Mikrotik router for WiFi

How to optimize Mikrotik router for WiFi

Mikrotik produces powerful equipment for advanced users with affordable prices. It’s similar to Linux in a way - you can modify almost anything, but don’t expect it’s going to work good out of a box. When I’ve bought MikroTik hAP ax³ I was disappointed with low performance and lack of band steering (devices were stuck on 2.4 Ghz if got connected to it). After quite some sleepless evenings I got it working in a good way, so clients have decent speed, connect to 802.11ax and use widest band width available. ...

May 30, 2025 · 4 min · Edvard
How install new kernel on Debian

How install new kernel on Debian

In order to start loving Debian - we need to try out other Linux distributions and see how easily things may break after system upgrade. While Debian is super stable - it could have a problem with newer hardware - older kernel versions might not simply support it. There is relatively stable way of installing newer kernel while still maintaining Debian golden stability. This approach is called backports. Here can be found official Debian article: Installing a Package from Backports ...

May 1, 2025 · 3 min · Edvard
Book review - Courage to be disliked

Book review - Courage to be disliked 📖

That’s the book about psychology. Provocative title, of course. Takes some time of reading to get to that point though. Audio-book version is narrated by two people in the form of dialogue, very interesting approach. Open person is philosopher and the other - young guy who’s trying to understand the new concept. He disagrees a lot and even yells at times (which might get even irritating), so we could here our unlocked questions while listening or reading to book while that sound guy speaks, which puts us in his role. Of course - one of the main goals is to find happiness. Are You truly happy? Perhaps You don’t need to read such books. ...

April 10, 2025 · 3 min · Edvard
What is zero inbox?

What is zero inbox? 📥

The concept or zero inbox we might have heard from book Getting Things Done by David Allen which is starting point in productivity books for those who want to improve their way of handling tasks. The philosophy The main idea is not only deleting every single mail in our inbox. The idea is to having “inbox” concept as bucket with items, that has to be dealt with, processed and acted on. One of the most popular task managers have it - Todoist . let’s think of an inbox concept as information buffer, that fills up somewhere on the background. When buffer is overfilled - it’s time to process it. ...

April 7, 2025 · 3 min · Edvard