Recover capacity at migration time

Moving from VMware to Red Hat® OpenShift® Virtualization raises a hard question: can you match VM density on hardware you already own? The answer is yes, and the migration itself is your best chance to recover capacity rather than carry old waste forward. This guide covers right-sizing the VM estate before you move; layered memory efficiency techniques like free page reporting, overcommit, and hotplug; and intelligent VM placement and ongoing rebalancing.