opts := ObjectOptions{}
	_, err := obj.NewMultipartUpload(context.Background(), "--", object, opts)
	if err == nil {
		t.Fatalf("%s: Expected to fail since bucket name is invalid.", instanceType)
	}

	errMsg := "Bucket not found: minio-bucket"
	// operation expected to fail since the bucket on which NewMultipartUpload is being initiated doesn't exist.
	_, err = obj.NewMultipartUpload(context.Background(), bucket, object, opts)

		ChecksumAlgo: userDefined[hash.MinIOMultipartChecksum],
	}, nil
}

// NewMultipartUpload - initialize a new multipart upload, returns a
// unique id. The unique id returned here is of UUID form, for each
// subsequent request each UUID is unique.
//
// Implements S3 compatible initiate multipart API.

	// that is without any other handler being registered,
	// That's why NewMultipartUpload is initiated using ObjectLayer.
	res, err := obj.NewMultipartUpload(context.Background(), bucketName, testObject, opts)
	if err != nil {
		// Failed to create NewMultipartUpload, abort.
		t.Fatalf("MinIO %s : <ERROR>  %s", instanceType, err)
	}
	uploadID := res.UploadID

		return
	} else if checksumType.IsSet() && !checksumType.Is(hash.ChecksumTrailing) {
		opts.WantChecksum = &hash.Checksum{Type: checksumType}
	}

	newMultipartUpload := objectAPI.NewMultipartUpload

	res, err := newMultipartUpload(ctx, bucket, object, opts)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

// if none are found falls back to most available space pool, this function is
// designed to be only used by PutObject, CopyObject (newObject creation) and NewMultipartUpload.
func (z *erasureServerPools) getPoolIdx(ctx context.Context, bucket, object string, size int64) (idx int, err error) {
	idx, err = z.getPoolIdxExistingWithOpts(ctx, bucket, object, ObjectOptions{
		SkipDecommissioned: true,

		return err
	}

	if oi.isMultipart() {
		res, err := z.NewMultipartUpload(ctx, bucket, oi.Name, ObjectOptions{
			VersionID:    oi.VersionID,
			UserDefined:  oi.UserDefined,
			NoAuditLog:   true,
			DataMovement: true,
			SrcPoolIdx:   poolIdx,
		})
		if err != nil {
			return fmt.Errorf("rebalanceObject: NewMultipartUpload() %w", err)
		}

}

// Initiate a new multipart upload on a hashedSet based on object name.
func (s *erasureSets) NewMultipartUpload(ctx context.Context, bucket, object string, opts ObjectOptions) (res *NewMultipartUploadResult, err error) {
	set := s.getHashedSet(object)
	return set.NewMultipartUpload(ctx, bucket, object, opts)
}

// PutObjectPart - writes part of an object to hashedSet based on the object name.

	// Multipart operations.
	ListMultipartUploads(ctx context.Context, bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (result ListMultipartsInfo, err error)
	NewMultipartUpload(ctx context.Context, bucket, object string, opts ObjectOptions) (result *NewMultipartUploadResult, err error)
	CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string, partID int,

		return err
	}

	if objInfo.isMultipart() {
		res, err := z.NewMultipartUpload(ctx, bucket, objInfo.Name, ObjectOptions{
			VersionID:    objInfo.VersionID,
			UserDefined:  objInfo.UserDefined,
			NoAuditLog:   true,
			SrcPoolIdx:   idx,
			DataMovement: true,
		})
		if err != nil {
			return fmt.Errorf("decommissionObject: NewMultipartUpload() %w", err)
		}

	}
	if r.Target.Type == BatchJobReplicateResourceS3 || r.Source.Type == BatchJobReplicateResourceS3 {
		opts.VersionID = ""
	}
	var uploadedParts []CompletePart
	res, err := api.NewMultipartUpload(context.Background(), tgtBucket, tgtObject, opts)
	if err != nil {
		return err
	}

	defer func() {
		if err != nil {
			// block and abort remote upload upon failure.
			attempts := 1