This guide explains the prerequisites, step‑by‑step procedures, and command‑line options for both cold and live migration of KVM virtual machines using NFS‑based shared storage, highlighting common pitfalls such as service interruption and MAC address conflicts.
This guide explains how to perform both cold and live migration of KVM virtual machines using NFS shared storage, covering prerequisites, step‑by‑step commands, network considerations, and key virsh options to avoid disk corruption and ensure seamless VM movement across hosts.
This article explains the challenges of live‑migrating KubeVirt virtual machines, how Kube‑OVN addresses network‑bridge limitations and IP changes, provides the required VM annotation, step‑by‑step migration commands, and details the multi‑stage migration process that keeps network interruption under 0.5 seconds with no TCP break.
This article explains the prerequisites, step-by-step commands, and best practices for both cold and live migration of KVM virtual machines using NFS shared storage, highlighting common pitfalls such as disk corruption and MAC address conflicts, and provides configuration tips to ensure seamless migration across hosts.
This article explains how Kube-OVN leverages OVN configuration parameters to enable non‑intrusive live migration for KubeVirt virtual machines, describes the underlying principle, provides usage instructions, and presents test results showing a drastic reduction in packet loss and migration downtime.
Tencent Cloud’s Hybrid vCPU research, presented at KVM Forum 2023, outlines a three‑stage roadmap from homogeneous cores to mixed x86, ARM, and RISC‑V CPUs, detailing how virtualizing heterogeneous topologies, frequencies, caches, and PMU features can boost VM performance, security, live‑migration flexibility, and data‑center utilization.
This comprehensive guide explains Libvirt’s architecture, installation, network configurations, bridge and NAT modes, optional Open vSwitch usage, and detailed steps for KVM live migration, providing command‑line examples and XML snippets for effective virtualization management.
This article details how the Kube-OVN community extended the CNI for edge cloud scenarios by adding security‑group based access control, high‑availability virtual IP support, live‑migration‑friendly networking, and smart‑NIC hardware offload, including implementation steps, CRD designs, and relevant pull‑request references.
This article details UCloud's comprehensive optimizations for KVM live migration—including host selection, zero‑data handling, network switch improvements, auto‑converge tuning, compression, fast‑migration paths, cross‑machine type migration, and local hot‑upgrade—demonstrating how each stage reduces downtime, data transfer, and resource consumption while maintaining VM availability.
This article summarizes a 2016 Global Operations conference talk that explains the challenges of cloud high‑availability, the classification of failures, and the practical solutions implemented by Kingsoft Cloud—including hot kernel upgrades, online migration, incremental disk formats, and automated backup—to keep service interruptions under a few hundred milliseconds.
