You can manage individual virtual machines or a group of virtual machines that belongs to a host or cluster.
From virtual machine's the console, you can change the guest operating system settings, use applications, browse the file system, monitor system performance, and so on. Use snapshots to capture the state of the virtual machine at the time you take the snapshot.
To migrate virtual machines using cold or hot migration, including vMotion, vMotion in environments without shared storage, and Storage vMotion, see the vCenter Server and Host Management documentation.