disks := er.getDisks()
	// Assume (N/2 + 1) quorum for Delete()
	// this is a theoretical assumption such that
	// for delete's we do not need to honor storage
	// class for objects that have reduced quorum
	// due to storage class - this only needs to be honored
	// for Read() requests alone that we already do.
	writeQuorum := len(disks)/2 + 1

		if legacyPreserved {
			if contextCanceled(ctx) {
				return res, ctx.Err()
			}

			if len(legacyEntries) > 0 {
				// legacy data dir means its old content, honor system umask.
				if err = mkdirAll(legacyDataPath, 0o777, dstVolumeDir); err != nil {
					// any failed mkdir-calls delete them.
					s.deleteFile(dstVolumeDir, legacyDataPath, true, false)

		return cfg, fmt.Errorf("unknown value: '%s'", idleSpeed)
	}

	// Stick to loading deprecated config/env if they are already set, and the Speed value
	// has not been changed from its "default" value, if it has been changed honor new settings.
	if kvs.GetWithDefault(Speed, DefaultKVS) == "default" {
		if kvs.Get(Delay) != "" && kvs.Get(MaxWait) != "" {
			if err = lookupDeprecatedScannerConfig(kvs, &cfg); err != nil {
				return cfg, err
			}