The WebGisDr utility provides excellent options for backing up a portal. Unfortunately, if servers that have cached tile services are federated to the portal, there is no way to exclude the tile caches from being included in the portal backup. Considering that tile caches can be quite large, this limitation can prevent portal backups from being feasible. Because tile caches are strictly file based and are typically quite static, it is very easy to back these up via simple file backup routines, making their inclusion in portal backups unnecessary under most circumstances.