Message:    "Remote tier bucket not found",
		StatusCode: http.StatusBadRequest,
	}
	// error returned when remote tier credentials are invalid.
	errTierInvalidCredentials = AdminError{
		Code:       "XMinioAdminTierInvalidCredentials",
		Message:    "Invalid remote tier credentials",
		StatusCode: http.StatusBadRequest,
	}
	// error returned when reserved internal names are used.
	errTierReservedName = AdminError{