基于Flash混合存储的数据迁移技术研究  

Research on data migration technology based on Flash hybrid storage

作　　者：周海 周子强 ZHOU Hai;ZHOU Ziqiang(China Southern Power Grid Digital Platform Technology(Guangdong)Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]南方电网数字平台科技(广东)有限公司,广东深圳518000

出　　处：《电子设计工程》2024年第11期51-54,59,共5页Electronic Design Engineering

基　　金：2022年南方电网深圳数字电网研究院有限公司科技项目(2100032022030304DW00004)。

摘　　要：混合存储系统内的数据结构较为混乱,为提高数据迁移效率,减少其响应时间,设计基于Flash混合存储的数据迁移技术。综合比较Flash存储器、固态硬盘存储器以及磁盘存储器的存储效果,对存储介质进行缓存分层,整理其在同层结构与分层结构中的读写顺序;计算文件的时间长度值,获取文件读写频率以及单位时间内的文件访问量,计算文件预期价值,并得到相应的约束条件,由此建立数据价值评定模型,设计数据迁移算法。实验结果表明,在邮件负载条件下效果更好,在不同时段内,响应时间均不超过3 s,因此该数据迁移技术的响应时间较短,性能较好。The data structure in the hybrid storage system is chaotic.In order to improve the efficiency of data migration and reduce its response time,a data migration technology based on Flash hybrid storage is designed.Comprehensively compare the storage effects of Flash memory,solid state hard disk memory and disk memory,layer the storage media,and sort out the read and write order in the same layer structure and layered structure;Calculate the time length value of the file,obtain the file read/write frequency and file access in unit time,calculate the expected value of the file,and obtain the corresponding constraints,thereby establishing a data value evaluation model and designing a data migration algorithm.The experimental results show that the effect is better under the mail load,and the response time does not exceed 3 s in different periods of time.This shows that the response time of this data migration technology is short and the performance is good.

关 键 词：FLASH存储器 混合存储 数据迁移技术 缓存分层结构 数据价值评定 磁盘寻道距离 

分 类 号：TN06[电子电信—物理电子学]