摘要
为了解决信息系统中数据失效的问题,详细记录数据的变化情况,在灾难发生时能够最低限度的减小损失,分析了当前持续数据保护(CDP)技术的现状,立足现有的TRAP-4持续数据保护思想,提出了一种基于虚拟存储技术的持续数据保护机制(VPS_CDP)。在虚拟层改进了日志生成方式,减轻了系统工作负载,缩短了数据备份与恢复时间,并提出了基于文件块的持续保护思想,增强了系统对于核心数据的持续全备份能力。
In order to solve the problem of data failure in information system, detailed records of data changes are made to reduce losses when disaster occurs. The status quo of continuous data protection （CDP） is analyzed in detail on the basis of TRAP-4, a continuous data protection mechanism based on virtual private server （VPS_ CDP） is proposed. The log generated in virtual layer is improved, alleviate the workload of the system is alleviated, the data backup and recovery time are shorten. And the file block- based continuous data protection is presented. A for continuous backup capabilities of the full core data is enhanced.
出处
《计算机工程与设计》
CSCD
北大核心
2013年第4期1207-1211,共5页
Computer Engineering and Design
基金
河南省基础与前沿技术研究计划基金项目(102300413203)
关键词
持续数据保护
虚拟专用服务器
日志
异或
虚拟存储技术
continuous data protection
virtual protected server
log
XOR
virtualization storage technology
