Servers on J-Cave.dk

My hypervisors in 2026: phoebe, priscilla and stephen

Fri, 30 Oct 2026 08:44:00 +0100

The last two parts of this series were about getting here: a new Proxmox server, and the one big box I would build if I could. This part is about what I actually have. Three machines, what each one is for, and how they are going to work together.

From one big server to three small ones

This series started with an HP ProLiant ML150 G6 from 2009 and the Smart Array controller I put in it. Two years ago I took stock of what I had. The ML150 has since been retired and is gone.

Hyperconverged Hypervisor

Fri, 23 Oct 2026 08:17:00 +0200

Having a homeserver lets you host your own services. There are a lot of ways to do this. This post explains what a hyperconverged hypervisor is, why I want one, and why I don’t have one yet.

I do not have the luxury of buying new specific hardware that fits the jobs I am looking to solve. I often have to make do with 2nd (or even 3rd) hand hardware to be able to have the systems that run both my business as well as protect our personal data such as photos and important documents.

New Proxmox homeserver

Fri, 16 Oct 2026 08:36:00 +0200

My current Proxmox server

My main Proxmox server is called phoebe. It is a Lenovo Tiny PC with an AMD Ryzen 5 PRO 3400GE processor and 64 GB of RAM, and it runs a couple of LXC containers (Nextcloud among them) and a few virtual machines.

Its storage used to be an NVMe drive for booting and two spinning drives in an OpenZFS mirror: a 4 TB 2.5" hard disk drive inside the case and an 8 TB external drive connected via USB 3. That gave 4 TB of usable space, as the smallest drive in a mirror dictates the capacity.

Explainer: What is RAID?

Tue, 13 Feb 2024 17:15:20 +0000

Reading about servers and storage you might have wondered: What is RAID? RAID is a method of melting multiple harddrives together to form a (often) larger logical drive. The acronym expands to either Redundant Array of Inexpensive Disks or Redundant Array of Independent Disks.

RAID was defined in a research paper: “A case for Redundant Arrays of Inexpensive Disks (RAID)” (Patterson et al, 1988). Andrew S Tanenbaum uses the latter acronym in his book (“Structured Computer Organization 5th Edition”, Tanenbaum, 2006, p 89). I had access to the 5th edition, from which I reference but you can get the 6th edition from Amazon.com and amazon.de (affiliate links).