disks := er.getDisks()
	g := errgroup.WithNErrs(len(disks))
	for index := range disks {
		g.Go(func() error {
			if disks[index] == nil {
				return errDiskNotFound
			}
			return disks[index].DeleteVersion(ctx, bucket, object, fi, false, DeleteOptions{})
		}, index)
	}

	for index, err := range g.Wait() {
		var errStr string
		if err != nil {
			errStr = err.Error()
		} else {
			errStr = "<nil>"