At the moment, automatic daily backup of internal database is being done in <storage_path>/urbackup
That can cause some serious issues when server migration or rebuild is not done carefully - if one points the new server to old storage path first, without restoring internal databases from <storage_path>/urbackup, then these copies get overwritten.
So I think it would make sense to suffix backup path with some kind of UUID or even random string i.e. <storage_path>/urbackup_uuid
That way, new installation would create copies of its databases in new directory and nothing gets overwritten.