func newHealingTracker() *healingTracker {
	return &healingTracker{
		mu: &sync.RWMutex{},
	}
}

func initHealingTracker(disk StorageAPI, healID string) *healingTracker {
	h := newHealingTracker()
	diskID, _ := disk.GetDiskID()
	h.disk = disk
	h.ID = diskID
	h.HealID = healID
	h.Path = disk.String()
	h.Endpoint = disk.Endpoint().String()
	h.Started = time.Now().UTC()

				z.HealedBuckets[za0002], err = dc.ReadString()
				if err != nil {
					err = msgp.WrapError(err, "HealedBuckets", za0002)
					return
				}
			}
		case "HealID":
			z.HealID, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "HealID")
				return
			}
		case "ItemsSkipped":
			z.ItemsSkipped, err = dc.ReadUint64()
			if err != nil {
				err = msgp.WrapError(err, "ItemsSkipped")

	if err = disk.RenameFile(context.TODO(), minioMetaBucket, tmpFormat, minioMetaBucket, formatConfigFile); err != nil {
		return err
	}

	disk.SetDiskID(format.Erasure.This)
	if healID != "" {
		ctx := context.Background()
		ht := initHealingTracker(disk, healID)
		return ht.save(ctx)
	}
	return nil
}

// loadFormatErasure - loads format.json from disk.