If your host contains a big number of virtual machines, you may want to deploy one or more agents in addition to the automatically deployed one. The instructions below will also help you deploy the agent to a stand-alone ESX(i) host that is not managed by vCenter Server.
To deploy an additional virtual appliance
[Optional] You may also want to modify the credentials that the agent will use to access the vCenter Server or ESX(i). Keep in mind that centralized backup and recovery tasks will run under this account by default. This means that the account must have the necessary privileges on the vCenter Server. Otherwise, you will need to specify credentials for the account with the necessary privileges in every centralized backup plan or recovery task.
[Optional] You may want to manually set the agent network settings, including the IP address. To do so, click Network configuration. By default, the agent obtains the network settings from the DHCP server, provided that this server is present in your network.
Tip: You will be able to change the network settings after the agent is deployed. To do so, select the virtual appliance in VMware vSphere inventory and go to the virtual appliance console. Under Agent options, click the Change link next to the name of the network interface, such as eth0.
Result: Once a new agent is deployed, the management server redistributes the virtual machines among the agents.