A computer-implemented method, carried out by one or more processors, for managing resources in a server environment. In an embodiment, the method includes determining to prepare one or more virtual resources for activation of one or more allocated host resources, based, at least in part, on virtual resource definitions. The one or more allocated host resources and the one or more virtual resources are activated. Activation of the one or more virtual resources is finalized, wherein finalizing the activation includes updating the virtual resource definitions.