QQ客服 官方微博 反馈留言

	Hntype : a diverse trace and migration mechanism in the block based hierarchical storage system named hazelnut
	Du,Ran; Huang,Qiulan; Cheng,Yaodong; Chen,Gang
刊名	Journal of physics: conference series
	2017-10-01
卷号	898期号:6
ISSN号	1742-6588
DOI	10.1088/1742-6596/898/6/062035
英文摘要	Abstract hazelnut is a block based hierarchical storage system, in which logical data blocks are migrated among storage tiers to achieve better i/o performance. in order to choose migrated blocks, data block i/o process is traced to collect enough information for migration algorithms. there are many ways to trace i/o process and implement block migration. however, how to choose trace metrics and design block migration algorithm is a big problem for system designers. to address this problem, a diverse trace and migration mechanism hntype is proposed. hntype consists two parts, one is a diverse trace mechanism named hntype-t, and the other is a diverse migration mechanism named hntype-s. hntype-t abstracts four base elements and trace operation interfaces based on vfs design concept, which makes it feasible to customize specific trace metrics and trace operations; hntype-s presents three ways of data migration, each way of migration can use customized migration algorithms according to predefined prototypes. based on hntype, a series of tests are conducted about how block migration is affected by different trace metrics, and three conclusions are drawn according to the experiment results. first, trace metrics of access times and access sectors are not linearly correlated, as a result, these two metrics bring different migration result; second, i/o completion time used as trace metrics is able to improve sequential i/o by at least 10%; third, access times used as metrics have a tendency of more migrations upwards.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:1742-6588-898-6-062035
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2175689
专题	高能物理研究所
作者单位	Institute of High Energy Physics, Chinese Academy of Sciences, Bejing, China
推荐引用方式 GB/T 7714	Du,Ran,Huang,Qiulan,Cheng,Yaodong,et al. Hntype : a diverse trace and migration mechanism in the block based hierarchical storage system named hazelnut[J]. Journal of physics: conference series,2017,898(6).
APA	Du,Ran,Huang,Qiulan,Cheng,Yaodong,&Chen,Gang.(2017).Hntype : a diverse trace and migration mechanism in the block based hierarchical storage system named hazelnut.Journal of physics: conference series,898(6).
MLA	Du,Ran,et al."Hntype : a diverse trace and migration mechanism in the block based hierarchical storage system named hazelnut".Journal of physics: conference series 898.6(2017).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。