}

	userDefined := cloneMSS(opts.UserDefined)
	if opts.PreserveETag != "" {
		userDefined["etag"] = opts.PreserveETag
	}
	onlineDisks := er.getDisks()

	// Get parity and data drive count based on storage class metadata
	parityDrives := globalStorageClass.GetParityForSC(userDefined[xhttp.AmzStorageClass])
	if parityDrives < 0 {
		parityDrives = er.defaultParityCount
	}

	if globalStorageClass.AvailabilityOptimized() {

	_, err = j.UnmarshalMsg(job)
	return err
}

func batchReplicationOpts(ctx context.Context, sc string, objInfo ObjectInfo) (putOpts miniogo.PutObjectOptions, err error) {
	// TODO: support custom storage class for remote replication
	putOpts, err = putReplicationOpts(ctx, "", objInfo)
	if err != nil {
		return putOpts, err
	}
	putOpts.Internal = miniogo.AdvancedPutOptions{
		SourceVersionID:    objInfo.VersionID,

bound existingClaim: "" ## minio data Persistent Volume Storage Class ## If defined, storageClassName: <storageClass> ## If set to "-", storageClassName: "", which disables dynamic provisioning ## If undefined (the default) or set to null, no storageClassName spec is ## set, choosing the default provisioner. (gp2 on AWS, standard on ## GKE, AWS & OpenStack) ## ## Storage class of PV to bind. By default it looks for standard storage class. ## If the PV uses a different storage class, specify that here....

		// https://github.com/google/security-research/security/advisories/GHSA-76wf-9vgp-pj7w
		if equals(k, xhttp.AmzMetaUnencryptedContentLength, xhttp.AmzMetaUnencryptedContentMD5) {
			continue
		}
		if equals(k, "x-amz-storage-class") && v == storageclass.STANDARD {
			continue
		}

		fi.Metadata[k] = v
	}

	tierFVIDKey := ReservedMetadataPrefixLower + tierFVID
	tierFVMarkerKey := ReservedMetadataPrefixLower + tierFVMarker

./mc mb sitea/testbucket

./mc version enable sitea/testbucket

./mc put --quiet README.md sitea/testbucket/file
etag1=$(./mc cat sitea/testbucket/file | md5sum --tag | awk {'print $4'})

./mc cp --quiet --storage-class "STANDARD" sitea/testbucket/file sitea/testbucket/file
etag2=$(./mc cat sitea/testbucket/file | md5sum --tag | awk {'print $4'})
if [ $etag1 != $etag2 ]; then
	echo "expected $etag1, got $etag2"
	exit 1
fi

func (gcs *warmBackendGCS) Put(ctx context.Context, key string, data io.Reader, length int64) (remoteVersionID, error) {
	object := gcs.client.Bucket(gcs.Bucket).Object(gcs.getDest(key))
	// TODO: set storage class
	w := object.NewWriter(ctx)
	if gcs.StorageClass != "" {
		w.ObjectAttrs.StorageClass = gcs.StorageClass
	}
	if _, err := xioutil.Copy(w, data); err != nil {
		return "", gcsToObjectError(err, gcs.Bucket, key)
	}

================================================================

github.com/lufia/plan9stats
https://github.com/lufia/plan9stats
----------------------------------------------------------------
BSD 3-Clause License

Copyright (c) 2019, KADOTA, Kyohei
All rights reserved.

Redistribution and use in source and binary forms, with or without

			fault:              MissingContentLength,
			expectedRespStatus: http.StatusLengthRequired,
			wantAPICode:        "MissingContentLength",
		},
		// Test Case with invalid header key X-Amz-Storage-Class
		6: {
			bucketName:         bucketName,
			objectName:         objectName,
			headers:            invalidStorageClassHeader,
			data:               bytesData,
			dataLen:            len(bytesData),

	// Standard storage class environment variable
	StandardEnv = "MINIO_STORAGE_CLASS_STANDARD"
	// Optimize storage class environment variable
	OptimizeEnv = "MINIO_STORAGE_CLASS_OPTIMIZE"
	// Inline block indicates the size of the shard
	// that is considered for inlining, remember this
	// shard value is the value per drive shard it
	// will vary based on the parity that is configured
	// for the STANDARD storage_class.

	// Date and time at which the object is no longer able to be cached
	Expires time.Time

	// Cache-Control - Specifies caching behavior along the request/reply chain
	CacheControl string

	// Specify object storage class
	StorageClass string

	ReplicationStatusInternal string
	ReplicationStatus         replication.StatusType
	// User-Defined metadata
	UserDefined map[string]string

	// User-Defined object tags