The double-erasure data layouts produced by this method have better check disk overhead than those produced by other methods.

与类似的方法相比，此方法所生成的双故障容错布局具有更优的校验磁盘开销。

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Doing so reduces the serialization overhead, the network bandwidth requirements, and disk requirements for replication.

这样做会减少复制的序列化的开销、网络带宽要求和磁盘要求。

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In addition, because the literal block data is stored in memory, little or no massaging of the in-memory data is required before writing it to disk, greatly reducing CPU overhead.

此外，因为文字块数据存储在内存中，这些内存数据在写到磁盘之前，不必或只需作很少更改，大大减少了CPU开销。

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