"Total capacity replicated to this instance",
				[]string{"bucket"}, nil),
			prometheus.GaugeValue,
			float64(stat.ReplicationStats.ReplicaSize),
			bucket,
		)

		for k, v := range usageInfo.ObjectSizesHistogram {
			ch <- prometheus.MustNewConstMetric(
				prometheus.NewDesc(
					prometheus.BuildFQName(bucketNamespace, "objects", "histogram"),
					"Total number of objects of different sizes in a bucket",

			// Fetch the data usage of the current bucket
			bui := globalBucketQuotaSys.GetBucketUsageInfo(ctx, bucket.Name)
			size := bui.Size
			objectsCount := bui.ObjectsCount
			objectsHist := bui.ObjectSizesHistogram
			versionsHist := bui.ObjectVersionsHistogram

			// Fetch the prefix usage of the current bucket
			var prefixUsage map[string]uint64
			if enablePrefixUsage {