测绘地理信息成果档案异地灾备系统的研建
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摘要
通过浙江省测绘地理信息成果档案异地灾备系统建设实践,在分析测绘地理信息成果档案备份现状、需求和容灾级别的基础上,对异地灾备系统架构、容灾技术方法进行研究,提出在政务外网、涉密内网两种网络环境中测绘地理信息成果档案容灾系统的设计模型,重点介绍了在线数据分别通过Nexenta Stor、Data Guard和分布式文件系统(DFS)实现同步或异步复制的技术,以及离线数据异地备份的维护情况。这种在线容灾和离线备份相结合的综合灾备方案可供测绘地理信息同行借鉴。
This paper examines the case for Zhejiang offsite disaster recovery center for surveying,mapping and geoinformation archives based on the status quo of its backups,requirements and the levels of disaster recovery. It also discusses the frameworks and techniques of the center and comes up with two design models for disaster recovery systems based on external and internal networks respectively.Much attention goes to how online data are replicated synchronously and asynchronously via Nexenta Stor,Data Guard and DFS,as well as the maintenance of offsite data remote backups. The combination of online disaster recovery and offsite data backup would provide a comprehensive plan for surveying,mapping and geoinformation professionals.
This paper examines the case for Zhejiang offsite disaster recovery center for surveying,mapping and geoinformation archives based on the status quo of its backups,requirements and the levels of disaster recovery. It also discusses the frameworks and techniques of the center and comes up with two design models for disaster recovery systems based on external and internal networks respectively.Much attention goes to how online data are replicated synchronously and asynchronously via Nexenta Stor,Data Guard and DFS,as well as the maintenance of offsite data remote backups. The combination of online disaster recovery and offsite data backup would provide a comprehensive plan for surveying,mapping and geoinformation professionals.
引文
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[2]国家档案局.数字档案馆建设指南[Z].北京:国家档案局,2010.
[3]国家质量监督检验检疫总局.GB/T 20988—2007信息安全技术信息系统灾难恢复规范[S].北京:中国标准出版社,2007.
[4]翟永,刘磊.国家基础地理信息中心数据成果异地存储备份系统设计[J].测绘科学,2008(S2):98-100.
[5]谢长生,韩德志,李怀阳,等.容灾备份的等级和技术[J].中国计算机用户,2003(18):30-33.
[6]伍百发.浅谈基础地理信息数据灾备中心的建设[J].地理空间信息,2012,10(4):29-31.
[7]赵钊.基于档案信息管理系统灾备技术的研究与应用[J].信息系统工程,2014,20(4):52-53.
[8]赵春香,李鸣,曹纯,等.浅析测绘地理信息业务档案异地备份方案[J].测绘通报,2016(11):134-136.
[9]焦惊眉,贠建明.数字测绘成果档案的容灾方案构想[J].测绘标准化,2015,31(1):10-21.
[10]黄新军.广西省级基础测绘成果数据异地备份研究[C]∥全国测绘科技信息网中南分网第二十五次学术信息交流会论文集.长沙:湖南地图出版社,2011.
[11]王东华,刘建军.国家基础地理信息数据库动态更新总体技术[J].测绘学报,2015,44(7):822-825.
[12]微软公司.分布式文件系统[EB/OL].(1999-04-19)[2017-2-20].http:∥www.microsoft.com/china/windows2000/library/howitworks/fileandprint/dfsnew.mspx.
[13]Nexenta Systems.Nexenta Stor版本3.1.x用户指南[Z].北京:[s.n.],2011.
[14]张晓明.大话Oracle RAC集群高可用性备份与恢复[M].北京:人民邮电出版社,2011.