vectors := []struct {
		header  *Header           // Input header
		paxHdrs map[string]string // Expected PAX headers that may be needed
		formats Format            // Expected formats that can encode the header
	}{{
		header:  &Header{},
		formats: FormatUSTAR | FormatPAX | FormatGNU,
	}, {
		header:  &Header{Size: 077777777777},
		formats: FormatUSTAR | FormatPAX | FormatGNU,
	}, {

	AmzSignedHeaders        = "X-Amz-SignedHeaders"
	AmzSignature            = "X-Amz-Signature"
	AmzCredential           = "X-Amz-Credential"
	AmzSecurityToken        = "X-Amz-Security-Token"
	AmzDecodedContentLength = "X-Amz-Decoded-Content-Length"
	AmzTrailer              = "X-Amz-Trailer"
	AmzMaxParts             = "X-Amz-Max-Parts"
	AmzPartNumberMarker     = "X-Amz-Part-Number-Marker"

### Expanding existing distributed setup

MinIO supports expanding distributed erasure coded clusters by specifying new set of clusters on the command-line as shown below:

```sh
export MINIO_ROOT_USER=<ACCESS_KEY>
export MINIO_ROOT_PASSWORD=<SECRET_KEY>

	if j.val == nil {
		return msgp.AppendNil(b), nil
	}
	buf := bytes.NewBuffer(GetByteBuffer()[:0])
	defer func() {
		PutByteBuffer(buf.Bytes())
	}()
	enc := json.NewEncoder(buf)
	err = enc.Encode(j.val)
	if err != nil {
		return b, err
	}
	return msgp.AppendBytes(b, buf.Bytes()), nil
}

// UnmarshalMsg will JSON marshal the value and wrap as a msgp byte array.
// Nil values are supported.

			defer grid.PutByteBuffer(buf)
			writers[i] = newStreamingBitrotWriterBuffer(inlineBuffers[i], DefaultBitrotAlgorithm, erasure.ShardSize())
		}
	}

	n, erasureErr := erasure.Encode(ctx, data, writers, buffer, writeQuorum)
	closeErrs := closeBitrotWriters(writers)
	if erasureErr != nil {
		return ObjectInfo{}, toObjectErr(erasureErr, minioMetaBucket, key)
	}

	// client is still connected, attempt the request.

	// Shallow copy. We don't modify the *UserInfo, if set.
	// All other fields are copied.
	u := *c.url
	u.Path = path.Join(u.Path, rpcMethod)
	u.RawQuery = values.Encode()

	req, err := c.newRequest(ctx, httpMethod, u, body)
	if err != nil {
		return nil, &NetworkError{Err: err}
	}
	if length > 0 {
		req.ContentLength = length
	}

			for i := range size {
				fi.VersionID = mustGetUUID()
				fi.DataDir = mustGetUUID()
				ids[i] = fi.VersionID
				fi.ModTime = fi.ModTime.Add(-time.Second)
				xl.AddVersion(fi)
			}
			// Encode all. This is used for benchmarking.
			enc, err := xl.AppendTo(nil)
			if err != nil {
				b.Fatal(err)
			}
			b.Logf("Serialized size: %d bytes", len(enc))
			rng := rand.New(rand.NewSource(0))

	if err != nil {
		t.Error("Unexpected error: ", err)
	}

	v := redirectURL.Query()
	v.Add("bucket", info.Bucket)
	v.Add("key", info.Name)
	v.Add("etag", "\""+info.ETag+"\"")
	redirectURL.RawQuery = v.Encode()
	expectedLocation := redirectURL.String()

	// Check the new location url
	if rec.Header().Get("Location") != expectedLocation {

	// unmarshalling works from a client perspective, specifically
	// while unmarshalling time.Time type for 'Initiated' field.
	// time.Time does not honor xml marshaller, it means that we need
	// to encode/format it before giving it to xml marshaling.

	// This below check adds client side verification to see if its
	// truly parsable.

	// listMultipartUploadsResponse - format for list multipart uploads response.

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