return err
	}
	sc.Parity = s.Parity
	return nil
}

// MarshalText - marshals storage class string.
func (sc *StorageClass) MarshalText() ([]byte, error) {
	if sc.Parity != 0 {
		return []byte(fmt.Sprintf("%s:%d", schemePrefix, sc.Parity)), nil
	}
	return []byte{}, nil
}

func (sc *StorageClass) String() string {
	if sc.Parity != 0 {
		return fmt.Sprintf("%s:%d", schemePrefix, sc.Parity)
	}

	}

	meta[xhttp.AmzObjectTagging] = oi.UserTags
	meta[xhttp.AmzTagDirective] = "REPLACE"

	if sc == "" {
		sc = oi.StorageClass
	}
	// drop non standard storage classes for tiering from replication
	if sc != "" && (sc == storageclass.RRS || sc == storageclass.STANDARD) {
		meta[xhttp.AmzStorageClass] = sc
	}

	meta[xhttp.MinIOSourceETag] = oi.ETag

		emetadata, err := extractMetadataFromReq(ctx, r)
		if err != nil {
			return nil, err
		}
		if sc != "" {
			emetadata[xhttp.AmzStorageClass] = sc
		}
		return emetadata, nil
	}

	if sc != "" {
		defaultMeta[xhttp.AmzStorageClass] = sc
	}

	// if x-amz-metadata-directive says COPY then we
	// return the default metadata.

	// All the parts per object.
	objInfo.Parts = fi.Parts

	// Update storage class
	if fi.TransitionTier != "" {
		objInfo.StorageClass = fi.TransitionTier
	} else if sc, ok := fi.Metadata[xhttp.AmzStorageClass]; ok {
		objInfo.StorageClass = sc
	} else {
		objInfo.StorageClass = globalMinioDefaultStorageClass
	}

	// set restore status for transitioned object
	restoreHdr, ok := fi.Metadata[xhttp.AmzRestore]

func putRestoreOpts(bucket, object string, rreq *RestoreObjectRequest, objInfo ObjectInfo) (putOpts ObjectOptions) {
	meta := make(map[string]string)
	sc := rreq.OutputLocation.S3.StorageClass
	if sc == "" {
		sc = objInfo.StorageClass
	}
	meta[strings.ToLower(xhttp.AmzStorageClass)] = sc

	if rreq.Type == SelectRestoreRequest {
		for _, v := range rreq.OutputLocation.S3.UserMetadata {

// It will attempt to read it from env variable and fall back to drives/2.
func ecDrivesNoConfig(setDriveCount int) (int, error) {
	sc, err := storageclass.LookupConfig(config.KVS{}, setDriveCount)
	if err != nil {
		return 0, err
	}
	return sc.GetParityForSC(storageclass.STANDARD), nil
}

// Initialize a new set of set formats which will be written to all disks.

	sseConfig.Apply(r.Header, sse.ApplyOptions{
		AutoEncrypt: globalAutoEncryption,
	})

	// Validate storage class metadata if present
	if sc := r.Header.Get(xhttp.AmzStorageClass); sc != "" {
		if !storageclass.IsValid(sc) {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidStorageClass), r.URL)
			return
		}
	}

	encMetadata := map[string]string{}

	case config.StorageClassSubSys:
		for i, setDriveCount := range setDriveCounts {
			sc, err := storageclass.LookupConfig(s[config.StorageClassSubSys][config.Default], setDriveCount)
			if err != nil {
				configLogIf(ctx, fmt.Errorf("Unable to initialize storage class config: %w", err))
				break
			}
			if i == 0 {
				globalStorageClass.Update(sc)
			}
		}
	case config.SubnetSubSys:

			switch {
			case oi.DeleteMarker, oi.TransitionedObject.FreeVersion:
				continue
			}
			tier := oi.StorageClass
			if tier == "" {
				tier = storageclass.STANDARD // no SC means "STANDARD"
			}
			if oi.TransitionedObject.Status == lifecycle.TransitionComplete {
				tier = oi.TransitionedObject.Tier
			}
			if sizeS.tiers != nil {
				if st, ok := sizeS.tiers[tier]; ok {

			partialWrite(healthInfo)

			peerSysConfig := globalNotificationSys.GetSysConfig(healthCtx)
			for _, sc := range peerSysConfig {
				anonymizeAddr(&sc)
				healthInfo.Sys.SysConfig = append(healthInfo.Sys.SysConfig, sc)
			}
			partialWrite(healthInfo)
		}
	}

	getAndWriteSysServices := func() {