return err
		}, index)
	}
	return storageDisks, g.Wait()
}

// formatErasureV3ThisEmpty - find out if '.This' field is empty
// in any of the input `formats`, if yes return true.
func formatErasureV3ThisEmpty(formats []*formatErasureV3) bool {
	for _, format := range formats {
		if format == nil {
			continue
		}
		// NOTE: This code is specifically needed when migrating version