In some situations, it is useful to provision hosts with Auto Deploy and to perform all subsequent boots from disk.
You can use vSphere Auto Deploy to provision an ESXi host, and set up a host profile that causes the host to store the ESXi image and configuration on the local disk, a remote disk, or a USB drive. Subsequently, the ESXi host boots from this local image. Auto Deploy no longer provisions the host. This process is similar to performing a scripted installation. With a scripted installation, the script provisions a host and the host then boots from disk. For this case, Auto Deploy provisions a host and the host then boots from disk.