Research on optimization model of storage capacity based on the consortium blockchain

Abstract

To solve the problem of increasing nodes data in blockchain, we propose an optimization model of storage capacity based on the consortium blockchain (OMSCCB). We have divided blockchain network into groups by the characteristics of partial decentralization of the consortium blockchain in the OMSCCB. In each group, the full node is selected according to the hardware performance and the accumulated reliability evaluation of the node. The full node is responsible for storing the blockchain data, and other ordinary nodes segment storage of the blockchain data according to the consistent hashing. And then, we have designed a replacement strategy of full node to ensure that the OMSCCB can resume normal operation when the network is attacked. The experimental results show that the storage cost of the system can be reduced effectively, and the reliability of the system can be guaranteed at the same time.