What is the primary function of VMware vMotion?

The primary function of VMware vMotion is to enable the live migration of virtual machines (VMs) from one physical host to another without any downtime. This means that workloads can be moved seamlessly while they are still running, allowing for maintenance and resource balancing across the host environment without affecting the end-user experience. vMotion utilizes the underlying infrastructure to transfer the memory and CPU state of a VM over the network to the target host, ensuring that the VM continues to run without interruptions.

This capability is essential for scenarios such as load balancing, maintenance of hardware, or disaster recovery, where minimizing downtime and maintaining service availability are critical.