epMap := globalBucketTargetSys.healthStats()

	sr.lock.RLock()
	defer sr.lock.RUnlock()
	m := make(map[string]SRMetric, len(sr.M))
	for dID, v := range sr.M {
		t := newXferStats()
		mx := make(map[RMetricName]XferStats)

		if v.XferRateLrg != nil {
			mx[Large] = *v.XferRateLrg.Clone()
			m := t.merge(*v.XferRateLrg)
			t = &m
		}
		if v.XferRateSml != nil {
			mx[Small] = *v.XferRateSml.Clone()