vSphere is VMware's software that provides a virtualization platform. Similar software to it includes Microsoft's Hyper-V and Citrix's XEN. ESXI, vCenter, and Vcloud are several important components of this software. The IT resources of the facility are virtualized into a virtual IT resource pool, and Vcenter Server centrally manages these virtualized resources by creating data centers and clusters, and forms corresponding resource pools, such as storage resource pools, memory resource pools, etc. Vcenter Server can implement high-level applications, such as AH DRS Vmotion, etc., while vCenter client manages ESXI hosts. It has two management forms, one directly manages ESXI hosts, but this form can only manage individual EXSI hosts. . The second is to centrally manage all EXSI hosts through Vcenter Server. As shown below: