totalDrives := onlineDrives.Merge(offlineDrives)

		metrics = append(metrics, MetricV2{
			Description: getClusterCapacityTotalBytesMD(),
			Value:       float64(GetTotalCapacity(storageInfo.Disks)),
		})

		metrics = append(metrics, MetricV2{
			Description: getClusterCapacityFreeBytesMD(),
			Value:       float64(GetTotalCapacityFree(storageInfo.Disks)),
		})