What can you do to minimize the downtime to the virtual machines (V Ms) when taking an ESX Server down for maintenance?
migrate the VMs to a different datastore
suspend VMs to preser ve state information
create a clone of the VM
migrate the VMs with VMotion
VMware VMotion Live Migration for Virtual Machines Without Service Interruption, page 1. VMware VMotionTM enables the live migration of running virtual machines from one physical server to another with zero downtime, continuous service availability, and complete transaction integrity.