Type:      counterMetric,
	}
	// {minio_node}_{tier}_{requests_failure}
	tierRequestsFailureMD = MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: tierSubsystem,
		Name:      tierRequestsFailure,
		Help:      "Number of requests to download object from warm tier that failed",
		Type:      counterMetric,
	}
)

func (t *tierMetrics) Report() []MetricV2 {