Architecture

AQEMU - a point-and-click QEMU front-end for Windows and Linux

QEMU can emulate almost anything, but getting a guest running usually means a wall of command-line flags. AQEMU is my attempt to fix that: an open-s…

Nutanix Zero-Copy Migration Removes Data Movement. It Doesn't Remove Migration Risk.

Zero-copy migration removes one of the most time-consuming parts of a VMware migration: moving the data itself. What it does not remove are the iden…

Kubernetes Did Not Replace Virtual Machines — It Changed

Kubernetes virtual machines still coexist by design in many production architectures — not because those environments are behind, but because Kubern…

Two translation layers and a TPM you have to fake: Windows on Apple Silicon

Disclosure up front: I build Kyvenza , a paid VM manager for Apple Silicon. This post is about the platform constraints, not a pitch — I'll be speci…

Two Nodes Can Preserve Availability. They Can't Preserve N+1 Capacity.

Two-node edge deployment no longer means what it meant two years ago. Red Hat now has two production-grade ways to run an OpenShift edge cluster on…

What ioctl(KVM_RUN) Does: The VM Exit Loop Explained

The previous article established that guest code runs natively until it touches a device, at which point control has to reach QEMU. ioctl(vcpu_fd, K…

CPU Steal Time Explained: What %st Really Means on a Virtual Machine

CPU steal time is one of those Linux metrics that looks simple until you actually need to diagnose a performance problem. You open top , notice that…

Before You Reinstall an Android Emulator on Windows, Name the Failure State

“The emulator will not open” sounds specific, but it can describe several different failures. Sometimes no process starts. Sometimes a process appea…

Hacking My Own Mac App: Penetration Testing macOS Defense Boundaries in a VM

A Japanese version of this is on Zenn . I build and sell a macOS network-security menu bar app called RoamSwitch . In a previous post , I wrote abou…

The error pointed at the GPU. The culprit was the HBA. — a Proxmox passthrough recovery

The plan looked textbook. PCIe passthrough an NVIDIA RTX A4000 from a Proxmox 8 host into an Ubuntu 24.04 VM, giving a Filecoin sealing worker direc…

1.Setting up my first Linux server on a Mac, and the scary messages that are actually fine

TL;DR I set up a real Ubuntu Server VM on an Apple Silicon Mac using UTM, as step one toward platform engineering. The setup is short. The confusing…

Your ESXi Hosts Are on Two Clocks Now: Support Dates and the Broadcom Licensing Squeeze

Originally published at endoflife.ai . If you run ESXi, you're managing two countdowns at once — and they interact badly. Clock one: support dates.…

HCI против классической виртуализации: архитектурный выбор для современного ЦОД

В мире корпоративной ИТ-инфраструктуры уже много лет существует дискуссия. На одном полюсе — проверенная временем классическая трёхуровневая архитек…

HCI против классической виртуализации: архитектурный выбор для современного ЦОД

В мире корпоративной ИТ-инфраструктуры уже много лет существует дискуссия. На одном полюсе — проверенная временем классическая трёхуровневая архитек…

Proxmox Isn't Replacing VMware. It's Replacing Assumptions.

Proxmox migration assumptions are the part of the VMware exit that doesn't appear on any migration checklist — and the part that causes the most dam…

Nutanix AHV Operations: What Changes After VMware Migration

The operational friction begins after the migration succeeds. Workloads are running. Clusters are stable. Teams declare victory — then discover that…

Virtualize Game Development with NVIDIA RTX PRO 6000 Blackwell Servers

The game development ecosystem is scaling at an unprecedented rate. Modern studio teams are engineering massive, interconnected virtual worlds opera…

C8s: A Confidential Kubernetes Architecture