Code:       "XMinioAdminTierBackendInUse",
		Message:    "Specified remote tier is already in use",
		StatusCode: http.StatusConflict,
	}

	errTierTypeUnsupported = AdminError{
		Code:       "XMinioAdminTierTypeUnsupported",
		Message:    "Specified tier type is unsupported",
		StatusCode: http.StatusBadRequest,
	}

	errTierBackendNotEmpty = AdminError{
		Code:       "XMinioAdminTierBackendNotEmpty",