func LookupConfig(kvs config.KVS, setDriveCount int) (cfg Config, err error) {
	cfg = Config{}

	deprecatedKeys := []string{
		"dma",
	}

	if err = config.CheckValidKeys(config.StorageClassSubSys, kvs, DefaultKVS, deprecatedKeys...); err != nil {
		return Config{}, err
	}

	ssc := env.Get(StandardEnv, kvs.Get(ClassStandard))
	rrsc := env.Get(RRSEnv, kvs.Get(ClassRRS))

		subSysTarget := subSys
		if tname != config.Default {
			subSysTarget = subSys + config.SubSystemSeparator + tname
		}
		if v, ok := kv.Lookup(config.Enable); ok && v == config.EnableOn {
			if err := config.CheckValidKeys(subSysTarget, kv, validKVS); err != nil {
				return err
			}
		}
	}
	return nil
}

// DefaultKafkaKVS - default KV for kafka target
var (
	DefaultKafkaKVS = config.KVS{
		config.KV{