快速文件备份软件的设计和实现  

Design and implementation of fast file backup software

作　　者：胡平平[1] 王晶杰[1] 

机构地区：[1]北京信息科技大学自动化学院,北京100192

出　　处：《计算机工程与设计》2015年第11期2979-2984,共6页Computer Engineering and Design

基　　金：北京市自然科学基金项目(4122028);北京市重点学科建设基金项目(PXM2014-014224-000018)

摘　　要：为解决多个分散存储文件快速备份问题,针对现有备份软件的不足,提出一种快速高效的文件备份处理方案,给出此备份软件的详细设计和实现方法。该方案支持多种灵活的备份方式,在实现细节上较好地考虑完备性、实用性和可靠性,设计的备份软件可实现不限量文件的快速备份,简单易用,具有较高的可靠性和容错能力。在文件信息存储方面采用分级存储和动态内存再分配策略,与常规动态存储方法相比,存储空间使用量减少一半,处理速度提高了几十倍。To realize the fast backup of multi files stored in different folders,to avoid the weakness of existing file backup software,a fast file backup method was proposed,and its software design and implementation was given in detail.The proposed backup method supported various backup modes with flexibilities.The completeness,practicability and reliability were emphasized in the design so that the realized backup software was easy to use and fast backup unlimited number of files with high reliability and fault tolerance was achieved.A graded dynamic memory re-assignment method was used to store the file information in compacted form that saved system memory space by 50% and has a speed that several times faster than conventional methods.

关 键 词：文件备份 快速备份 动态存储 存储分配 时间复杂度 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]