func LookupConfig(kvs config.KVS) (cfg Config, err error) {
	cfg = Config{
		ExcessVersions: 100,
		ExcessFolders:  50000,
		IdleMode:       0, // Default is on
	}

	if err = config.CheckValidKeys(config.ScannerSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

	excessVersions, err := strconv.ParseInt(env.Get(EnvExcessVersions, kvs.GetWithDefault(ExcessVersions, DefaultKVS)), 10, 64)
	if err != nil {