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Live Migration

OpenShift Virtualization

OpenShift Cluster Sizing for Virtualization

October 31, 2026October 31, 2026
6 min read
Cluster capacity split into five budgets: platform, guest execution, data services, change operations and resilience reserve

Size an OpenShift Virtualization cluster: five capacity budgets, N+1 memory math, CPU and placement constraints, storage and migration throughput.

Categories OpenShift Virtualization Tags Capacity Sizing, Live Migration, Migration Planning, Storage
OpenShift Virtualization

OpenShift VM Live Migration Explained

October 31, 2026October 31, 2026
6 min read
Three different migration problems: VMware to OpenShift with MTV, in-cluster VMI live migration between nodes, and cross-cluster live migration which is Technology Preview in 4.20

How OpenShift VM live migration works: pre-copy convergence, eligibility constraints, network and concurrency tuning, post-copy and node drains.

Categories OpenShift Virtualization Tags KubeVirt, Live Migration
V virtualization.co.in

Engineering notes and guides on VMware vSphere, OpenShift Virtualization, KubeVirt and the Migration Toolkit for Virtualization.

Topics

  • OpenShift Virtualization
  • Migration Toolkit for Virtualization
  • VCSA
  • PowerShell
  • PowerCLI
  • vCenter
  • ESXi
  • vCenter SDK

Recent articles

  • MTV Storage Copy Offload with XCOPY: Populator Pods, VIB and SSH Explained
  • Enterprise-Scale VMware to OpenShift Migration Architecture
  • OpenShift Virtualization Troubleshooting Guide
  • Building OpenShift PowerShell Cmdlets
  • VMware PowerCLI vs OpenShift CLI
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