Design of backup system based on Peer-to-peer cloud storage and implementation of log recovery

Design of backup system based on Peer-to-peer cloud storage and implementation of log recovery

Lu Dan of Jilin University

This article has done the following work: 1. Integrated cloud storage with the ability to provide storage services and an unstructured, scalable peer-to-peer technology, this paper presents a peer-to-peer cloud storage backup system based on the system structure, network topology and overall framework structure. Using chord algorithm to coordinate multiple service management nodes and distribute user requests to multiple data block servers, a service management node, multiple data block server and backup server form a node storage cluster, node storage cluster completes the storage and management of user data, solves the bottleneck problem of central node. 2. Design file storage and access plan, define the file metadata information table, file index table, backup file information table and other key data structures. Based on the analysis of the availability of replicas and the consistency of replicas, a suitable copy management strategy is proposed, and the backup and recovery plan is developed to make the Peer-to-peer cloud storage backup system have good disaster recovery. 3. Study and analyze the regular log structure in the existing database, put forward a kind of log data structure suitable for Peer-to-peer cloud storage backup system, use log to realize backup and recovery plan, ensure system reliability and usability. Design log management engine, analyze log recovery module structure, including log data structure, log cache, log resource management data type, and log-related operation function, integrate the basic principle of log recovery, write log recovery algorithm, give the realization of log recovery module. 4. Build the simulation experiment platform, design the experiment process, analyze the experiment result. The simulation experiment mainly includes backup and recovery test, the influence of storage node number on system usability, the influence of backup copy number on system usability, the effect of backup copy number on system performance, and the success rate of file recovery.

Design of backup system based on Peer-to-peer cloud storage and implementation of log recovery