Exploring vMotion
The vMotion feature in vSphere provides you a mechanism to manually balance compute resource utilization between two ESXi hosts. What exactly does this mean?
vMotion can perform a live migration of a powered-on VM from one host to another without an interruption in service. This is a zero-downtime operation; network connections are not dropped, and applications or services continue to run uninterrupted. In fact, application owners and user are unaware that the VM has been migrated between the physical hosts. When vMotion is initiated to migrate a VM between hosts, the resource allocation is also migrated—CPU and memory—from one host to another. This makes vMotion an extremely effective tool for manually load-balancing VMs across hosts and eliminating “hot spots”— heavily utilized ESXi hosts—within the datacenter.
