To measure repair latency at helper nodes, we introduce a new metric called skip cost that quantifies the number of contiguous sections accessed on a disk. We provide explicit constructions of zigzag codes and fractional repetition codes that incur zero skip cost

翻译：为衡量辅助节点的修复延迟，我们引入了一个名为跳跃成本的新度量标准，该标准量化了磁盘上访问的连续扇区数量。我们提供了之字形编码与分数重复编码的显式构造方案，这些方案可实现零跳跃成本。