What technology does VMotion rely on for migrating VMs?

VMotion relies on live migration technology to enable the seamless movement of virtual machines (VMs) from one physical host to another without any downtime. This technology allows for the continuous operation of the VM, ensuring that users experience no disruption to services during the migration process.

Live migration involves the transfer of the running state of a VM, including its memory, network connections, and storage, while the VM remains operational. This capability is integral to resource optimization, load balancing, and minimizing service interruptions in a virtualized environment.

While other technologies mentioned might be relevant in different contexts—like backup technology for creating copies of VMs, snapshot technology for preserving the state of a VM at a particular point in time, or storage technology for managing virtual disks—none of these serve the same purpose as live migration technology in the context of VMotion. Only live migration specifically addresses the criteria required for moving VMs seamlessly and without disruption.