In this paper, a novel block file storage model is proposed by using erasure code technology, and is applied to the blockchain system. The storage system of blockchain is improved by using erasure code technology, and the stored block file is coded and stored in slices. With less data redundancy, the data reliability is not weaker than the original system, and the node's demand for storage is reduced. Moreover, the model provides a block file decoding recovery scheme, as well as an adapted block synchronization strategy, which enhances the usability of the model. Finally, this paper tests the model by running in multiple fabric nodes, the results shows that it can reduce the storage space of the nodes and effectively improve the storage scalability of the blockchain system.%文章提出了一种区块链系统区块文件存储模型,并将其应用于超级账本区块链系统.模型基于纠删码技术改进区块链系统的存储性能,对其存储的区块文件进行编码分片存储,能够以更小的数据冗余度获得不弱于原始系统的数据可靠性,大幅减少了节点对存储资源的需求.同时,模型提供了区块文件解码恢复方案及适配的区块同步方案,增强了模型的可用性.将模型在多个区块链节点中运行测试,结果表明该模型显著减少了节点的存储空间占用,有效改善了区块链系统的存储可扩展性.
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