摘要
分析了数据迁移时间设计中存在的问题。引入了数学公式来判断存储使用量的变化趋势,由变化趋势、存储系统的传输速率和存储容量来判断迁移时间,这为迁移时间的设计提供了理论方式。同时开发了数据迁移监控器,结合迁移时间制定了相应的迁移策略。在高性能计算的环境下,搭建了两层存储的测试系统,部署了该迁移策略。实验结果表明,迁移时间的设计能实现分层存储中数据及时迁移,并可有效缓解迁移堵塞、提高存储层的使用率。
The programs exiting in design of data migration time are analyzed. This study determines migration time and designs the monitor of data migration by introducing mathematical formula estimating the change of the storage capacity, and combining with transmission rate of storage system and storage capacity, so a theory method about the design of migration time is provided. Meanwhile, two-tier storage is built in high performance computing environment. According to the design of migration time, the data migration strategy is disposed in the tiered storage. The result indicates that this design could ensure the timely migration of the data in tiered storage, effectively reduce the migration blocking and improve the utilization rate of storage.
出处
《计算机工程与设计》
CSCD
北大核心
2013年第2期725-729,共5页
Computer Engineering and Design
基金
上海市优青专项基金项目(shu09030)
关键词
分层存储
数据迁移
迁移时间
迁移堵塞
数学公式
tiered storage
data migration
migration time
migration blocking
mathematical formula
