func RestBackupCreate(w *rest.ResponseWriter, r *rest.Request, client *node.ControlClient) {
dir := ""
filePath := ""
err := client.AsyncBackup(dir, &filePath)
if err != nil {
glog.Errorf("Unexpected error during backup: %v", err)
restServerError(w, err)
return
}
w.WriteJson(&simpleResponse{filePath, servicesLinks()})
}