VMware uses the vMotion technology to migrate a running virtual machine from one physical server to another physical server without incurring down time. The migration process, also known as a hot migration, migrates running virtual machines with zero downtime, continuous service availability, and complete transaction integrity.
With vMotion, you can:
Schedule migration to occur at predetermined times and without the presence of an administrator.
Perform hardware maintenance without scheduled downtime.
Migrate virtual machines away from failing or underperforming servers.
Before using vMotion, you must:
Ensure that each host that migrates virtual machines to or from the host uses a licensed vMotion application and the vMotion is enabled.
Ensure that you have identical vSwitches. You must enable vMotion on these vSwitches.
Ensure that the Port Groups are identical for vMotion.
Use a dedicated NIC to ensure the best performance.
Note:
If WebLM is being used either as a master WebLM server or a local WebLM server in an enterprise licensing deployment for a product, after migration of virtual machine to another physical server using vMotion, validate connectivity from the master WebLM server for all the added local WebLM servers to ensure that the master WebLM server can communicate with the local WebLM servers.
