func testStorageAPIDiskInfo(t *testing.T, storage StorageAPI) {
	testCases := []struct {
		expectErr bool
	}{
		{true},
	}

	for i, testCase := range testCases {
		_, err := storage.DiskInfo(context.Background(), DiskInfoOptions{Metrics: true})
		expectErr := (err != nil)

		if expectErr != testCase.expectErr {
			t.Fatalf("case %v: error: expected: %v, got: %v", i+1, testCase.expectErr, expectErr)
		}

		return nil
	}
	// not the same disk we remember, take it offline.
	return errDiskNotFound
}

func (p *xlStorageDiskIDCheck) DiskInfo(ctx context.Context, opts DiskInfoOptions) (info DiskInfo, err error) {
	if contextCanceled(ctx) {
		return DiskInfo{}, ctx.Err()
	}

	si := p.updateStorageMetrics(storageMetricDiskInfo)
	defer si(&err)

	if opts.NoOp {
		if opts.Metrics {

	for _, i := range r.Perm(len(disks)) {
		i := i
		wg.Add(1)
		go func() {
			defer wg.Done()
			if disks[i] == nil {
				return
			}
			di, err := disks[i].DiskInfo(context.Background(), DiskInfoOptions{})
			if err != nil || di.Healing {
				// - Do not consume disks which are not reachable
				//   unformatted or simply not accessible for some reason.
				//

	storageDiskInfoRPC         = grid.NewSingleHandler[*DiskInfoOptions, *DiskInfo](grid.HandlerDiskInfo, func() *DiskInfoOptions { return &DiskInfoOptions{} }, func() *DiskInfo { return &DiskInfo{} }).WithSharedResponse().AllowCallRequestPool(true)

// If a disk is nil or an error is returned the result will be nil as well.
func getDiskInfos(ctx context.Context, disks ...StorageAPI) []*DiskInfo {
	res := make([]*DiskInfo, len(disks))
	opts := DiskInfoOptions{}
	for i, disk := range disks {
		if disk == nil {
			continue
		}
		if di, err := disk.DiskInfo(ctx, opts); err == nil {
			res[i] = &di
		}
	}
	return res
}

	}
}

func BenchmarkMarshalMsgDiskInfo(b *testing.B) {
	v := DiskInfo{}
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.MarshalMsg(nil)
	}
}

func BenchmarkAppendMsgDiskInfo(b *testing.B) {
	v := DiskInfo{}
	bts := make([]byte, 0, v.Msgsize())
	bts, _ = v.MarshalMsg(bts[0:0])
	b.SetBytes(int64(len(bts)))
	b.ReportAllocs()

	} else if err := s.checkODirectDiskSupport(info.FSType); err == nil {
		s.oDirect = true
	} else {
		return s, err
	}

	// Initialize DiskInfo cache
	s.diskInfoCache.InitOnce(time.Second, cachevalue.Opts{},
		func() (DiskInfo, error) {
			dcinfo := DiskInfo{}
			di, err := getDiskInfo(s.drivePath)
			if err != nil {
				return dcinfo, err
			}
			dcinfo.Major = di.Major
			dcinfo.Minor = di.Minor

	latestDriveStatsMu.Unlock()

	globalLocalDrivesMu.RLock()
	localDrives := cloneDrives(globalLocalDrives)
	globalLocalDrivesMu.RUnlock()

	for _, d := range localDrives {
		di, err := d.DiskInfo(GlobalContext, DiskInfoOptions{})
		labels := map[string]string{"drive": di.Endpoint}
		if err == nil {
			updateResourceMetrics(driveSubsystem, usedBytes, float64(di.Used), labels, false)

		if err != nil {
			// Log bucket healing error if any, we shall retry again.
			healingLogIf(ctx, err)
		}
	}

	info, err := tracker.disk.DiskInfo(ctx, DiskInfoOptions{})
	if err != nil {
		return fmt.Errorf("unable to get disk information before healing it: %w", err)
	}

	var numHealers uint64

	globalLocalDrivesMu.RLock()
	localDrives := cloneDrives(globalLocalDrives)
	globalLocalDrivesMu.RUnlock()

	errs := make([]error, len(localDrives))
	infos := make([]DiskInfo, len(localDrives))
	for i, drive := range localDrives {
		infos[i], errs[i] = drive.DiskInfo(GlobalContext, DiskInfoOptions{})
	}
	infoMaps := make(map[string]madmin.DiskMetrics)
	for i := range infos {