}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor
func GetDriveStats(major, minor uint32) (iostats IOStats, err error) {
	return IOStats{}, errors.New("operation unsupported")

	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor
func GetDriveStats(major, minor uint32) (iostats IOStats, err error) {
	return IOStats{}, errors.New("operation unsupported")

     */
    // GET /api/admin/stats
    @Execute
    public JsonResponse<ApiResult> index() {
        final HashMap<String, Object> stats = new HashMap<>();
        stats.put("jvm", getJvmObj());
        stats.put("os", getOsObj());
        stats.put("process", getProcessObj());
        stats.put("engine", getEngineObj());
        stats.put("fs", getFsObj());

	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor
func GetDriveStats(major, minor uint32) (iostats IOStats, err error) {
	return IOStats{}, errors.New("operation unsupported")

		}
		if hm.Mem != nil && len(hm.Mem.Info.Addr) > 0 {
			labels := map[string]string{}
			stats := hm.Mem.Info
			updateResourceMetrics(memSubsystem, total, float64(stats.Total), labels, false)
			updateResourceMetrics(memSubsystem, memUsed, float64(stats.Used), labels, false)
			perc := math.Round(float64(stats.Used*100*100)/float64(stats.Total)) / 100

		merged.UpdatedAt = cm.UpdatedAt
	}

	for i := range cl.Bins {
		merged.Bins[i] = cl.Bins[i].add(cm.Bins[i])
	}

	return merged
}

// DailyAllTierStats is used to aggregate last day tier stats across MinIO servers
type DailyAllTierStats map[string]lastDayTierStats

func (l DailyAllTierStats) merge(m DailyAllTierStats) {
	for tier, st := range m {
		l[tier] = l[tier].merge(st)
	}
}

	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor
func GetDriveStats(major, minor uint32) (iostats IOStats, err error) {
	return IOStats{}, errors.New("operation unsupported")

	Used       uint64
	Files      uint64
	Ffree      uint64
	FSType     string
	Major      uint32
	Minor      uint32
	Name       string
	Rotational *bool
	NRRequests uint64
}

// IOStats contains stats of a single drive
type IOStats struct {
	ReadIOs        uint64
	ReadMerges     uint64
	ReadSectors    uint64
	ReadTicks      uint64
	WriteIOs       uint64
	WriteMerges    uint64
	WriteSectors   uint64

	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor
func GetDriveStats(major, minor uint32) (iostats IOStats, err error) {
	return IOStats{}, errors.New("operation unsupported")

	}
	if types.Contains(madmin.MetricsRPC) {
		gr := globalGrid.Load()
		if gr == nil {
			m.Errors = append(m.Errors, fmt.Sprintf("%s: Grid not initialized", byHostName))
		} else {
			stats := gr.ConnStats()
			m.Aggregated.RPC = &stats
		}
	}
	// Add types...

	// ByHost is a shallow reference, so careful about sharing.
	m.ByHost = map[string]madmin.Metrics{byHostName: m.Aggregated}