A Hierarchical Model for Virtualized Data Center Availability Evaluation

Matheus Torquato, Erico A. C. Guedes, P. Maciel, M. Vieira
{"title":"A Hierarchical Model for Virtualized Data Center Availability Evaluation","authors":"Matheus Torquato, Erico A. C. Guedes, P. Maciel, M. Vieira","doi":"10.1109/EDCC.2019.00029","DOIUrl":null,"url":null,"abstract":"Availability events like hangs, failures, and interruptions are usually unexpected and unpredictable. Due to the involving uncertainty, setting up a consolidated approach for availability evaluation is a hard endeavor. The availability evaluation becomes even more complicated in complex systems like cloud computing. Previous works fill such a gap using availability models. However, the majority of those papers proposes models for specific scenarios, which impairs their scalability and flexibility. In this paper, we present a scalable availability model for virtualized datacenters. From the model's design point-of-view, we provide: i) a hierarchical model based on Reliability Block Diagrams and Stochastic Reward Nets, and ii) an evaluation of the time to compute the model's results. We tested different architectures regarding system availability, capacity-oriented availability, and power consumption. As our model considers the fundamental premises of virtualized environments, it can be extended to specific scenarios. We also used a multiple-criteria decision-making process to highlight the best architectures for different users' needs, considering system downtime, capacity-oriented availability, and power consumption.","PeriodicalId":334498,"journal":{"name":"2019 15th European Dependable Computing Conference (EDCC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 15th European Dependable Computing Conference (EDCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EDCC.2019.00029","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5

Abstract

Availability events like hangs, failures, and interruptions are usually unexpected and unpredictable. Due to the involving uncertainty, setting up a consolidated approach for availability evaluation is a hard endeavor. The availability evaluation becomes even more complicated in complex systems like cloud computing. Previous works fill such a gap using availability models. However, the majority of those papers proposes models for specific scenarios, which impairs their scalability and flexibility. In this paper, we present a scalable availability model for virtualized datacenters. From the model's design point-of-view, we provide: i) a hierarchical model based on Reliability Block Diagrams and Stochastic Reward Nets, and ii) an evaluation of the time to compute the model's results. We tested different architectures regarding system availability, capacity-oriented availability, and power consumption. As our model considers the fundamental premises of virtualized environments, it can be extended to specific scenarios. We also used a multiple-criteria decision-making process to highlight the best architectures for different users' needs, considering system downtime, capacity-oriented availability, and power consumption.
虚拟化数据中心可用性评估的层次模型
诸如挂起、故障和中断之类的可用性事件通常是不可预测的。由于涉及到不确定性,建立一个统一的可用性评估方法是一项艰巨的工作。在云计算等复杂系统中,可用性评估变得更加复杂。以前的工作使用可用性模型填补了这样的空白。然而,这些论文中的大多数提出了特定场景的模型,这削弱了它们的可扩展性和灵活性。在本文中,我们提出了一个可扩展的虚拟化数据中心可用性模型。从模型的设计角度来看,我们提供:i)基于可靠性框图和随机奖励网的分层模型,ii)计算模型结果的时间评估。我们测试了不同的体系结构,包括系统可用性、面向容量的可用性和功耗。由于我们的模型考虑了虚拟化环境的基本前提,因此它可以扩展到特定的场景。我们还使用了一个多标准决策过程,以突出针对不同用户需求的最佳架构,同时考虑到系统停机时间、面向容量的可用性和功耗。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信