第三部分
创建vapps
vspps介绍(虚拟应用程序集)
vapps are a way for vsphere administrators to combine multiple vms into a single unit.why is this functionality useful? increasingly,enterprise applications are no longer constrained to a single vm.instead,enterprise applications may have components spread across multiple vms.for example,a typical multitier application might have one or more front-end web servers,an application server,and a back-end database server.
combining these different vms into a vapp allows the vsphere administrator to manage the different vms as a single unit.(把多个vm放到一个单元里面,进行统一管理)
