摘要
容灾系统中多任务的备份数据并发存储时,现有的磁盘镜像存储方法导致备份中心大量存储空间闲置和磁盘频繁寻址,造成存储I/O性能低下的现状,为解决这个问题,设计并实现了一种远程备份数据的存储和管理方法。该方法通过基于位图的空间动态管理、空间映射、数据封装等技术,实现多任务远程备份数据的存储和空间管理。实验结果表明,该方法不仅提高了存储效率,而且节约了存储空间。
In the disaster tolerant system,the method of traditional disk mirroring storage led to the storage space of remote backup center wasted and disk addressing caused the poor performance of the storage IO capability when the multitask backup data concurrency storaged.According to this problem,a remote backup data storage and management method is designed and implemented.With the space allocated dynamically based bitmap,space mapping and backup data encapsulation,the method supports multitask remote backup data storageand management.The experiment proved that the method can notonly improve the storage efficiency but also save the storage space.
出处
《计算机工程与设计》
CSCD
北大核心
2010年第15期3346-3349,共4页
Computer Engineering and Design
基金
国家高技术产业示范工程基金项目([2006]1780)
信息产业部电子发展基金项目([2007]292)
关键词
位图
空间管理
数据封装
备份存储
I/O调度
bitmap
space management
data encapsulation
backup storage
I/O schedule
