host, err := xnet.ParseHost(serverAddr)
	if err != nil {
		return config.ErrInvalidAddressFlag(err)
	}

	// 0.0.0.0 is a wildcard address and refers to local network
	// addresses. I.e, 0.0.0.0:9000 like ":9000" refers to port
	// 9000 on localhost.
	if host.Name != "" && host.Name != net.IPv4zero.String() && host.Name != net.IPv6zero.String() {

		return
	}
	z.SuccessorModTime, err = dc.ReadTime()
	if err != nil {
		err = msgp.WrapError(err, "SuccessorModTime")
		return
	}
	z.Fresh, err = dc.ReadBool()
	if err != nil {
		err = msgp.WrapError(err, "Fresh")
		return
	}
	z.Idx, err = dc.ReadInt()
	if err != nil {
		err = msgp.WrapError(err, "Idx")
		return
	}
	if dc.IsNil() {
		err = dc.ReadNil()

		}
	} else {
		oh, exists := ahs.getHealSequence(pathJoin(h.bucket, h.object))
		if exists && !oh.hasEnded() {
			errMsg = "Heal is already running on the given path " +
				"(use force-start option to stop and start afresh). " +
				fmt.Sprintf("The heal was started by IP %s at %s, token is %s",
					h.clientAddress, h.startTime.Format(http.TimeFormat), h.clientToken)
			return nil, errorCodes.ToAPIErr(ErrHealAlreadyRunning), errMsg
		}
	}

		Version string `json:"version"` // Version of 'xl' format.
		Disk    string `json:"drive"`   // Disk field carries assigned disk uuid.
		// JBOD field carries the input disk order generated the first
		// time when fresh disks were supplied.
		JBOD []string `json:"jbod"`
	} `json:"xl"` // Erasure field holds xl format.
}

// Represents the V2 backend disk structure version
// under `.minio.sys` and actual data namespace.

	Data []byte `msg:"d,allownil"` // optionally carries object data

	NumVersions      int       `msg:"nv"`
	SuccessorModTime time.Time `msg:"smt"`

	Fresh bool `msg:"fr"` // indicates this is a first time call to write FileInfo.

	// Position of this version or object in a multi-object delete call,
	// no other caller must set this value other than multi-object delete call.

				}
			}
		}()
	}

	return nil
}

func newPoolMeta(z *erasureServerPools, prevMeta poolMeta) poolMeta {
	newMeta := poolMeta{} // to update write poolMeta fresh.
	// looks like new pool was added we need to update,
	// or this is a fresh installation (or an existing
	// installation with pool removed)
	newMeta.Version = poolMetaVersion
	for idx, pool := range z.serverPools {
		var skip bool

		// transport is already down.
		return "", errDiskNotFound
	}

	// This call should never be over the network, this is always
	// a cached value - caller should make sure to use this
	// function on a fresh disk or make sure to look at the error
	// from a different networked call to validate the GetDiskID()
	return *client.diskID.Load(), nil
}

func (client *storageRESTClient) SetDiskID(id string) {

var errSkipFile = errors.New("skip this file")

var errIgnoreFileContrib = errors.New("ignore this file's contribution toward data-usage")

// errXLBackend XL drive mode requires fresh deployment.
var errXLBackend = errors.New("XL backend requires fresh drive")

// StorageErr represents error generated by xlStorage call.
type StorageErr string

func (h StorageErr) Error() string {
	return string(h)
}

type KeycloakProvider struct {
	sync.Mutex

	oeConfig DiscoveryDoc
	client   http.Client
	adminURL string
	realm    string

	// internal value refreshed
	accessToken Token
}

// LoginWithUser authenticates username/password, not needed for Keycloak
func (k *KeycloakProvider) LoginWithUser(username, password string) error {
	return ErrNotImplemented
}

}

// WriteMetadata - writes FileInfo metadata for path at `xl.meta`
func (s *xlStorage) WriteMetadata(ctx context.Context, origvolume, volume, path string, fi FileInfo) (err error) {
	if fi.Fresh {
		if origvolume != "" {
			origvolumeDir, err := s.getVolDir(origvolume)
			if err != nil {
				return err
			}

			if !skipAccessChecks(origvolume) {
				// Stat a volume entry.