Modeling and Analysis of High Availability Techniques in a Virtualized System
Modeling and Analysis of High Availability Techniques in a Virtualized System
复制标题
虚拟化系统高可用性技术的建模与分析
DOI:
10.1093/comjnl/bxx049
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发表时间:
2017-05
期刊:
影响因子:
--
通讯作者:
Zhenjiang Zhang
中科院分区:
文献类型:
--
作者:
Xiaolin Chang;Tianju Wang;Ricardo J. Rodríguez;Zhenjiang Zhang
Availability evaluation of a virtualized system is critical to the wide deployment of cloud computing services. Time-based, prediction-based rejuvenation of virtual machines (VM) and virtual machine monitors, VM failover and live VM migration are common high-availability (HA) techniques in a virtualized system. This paper investigates the effect of combination of these availability techniques on VM availability in a virtualized system where various software and hardware failures may occur. For each combination, we construct analytic models rejuvenation mechanisms to improve VM availability; (2) prediction-based rejuvenation enhances VM availability much more than time-based VM rejuvenation when prediction successful probability is above 70%, regardless failover and/or live VM migration is also deployed; (3) failover mechanism outperforms live VM migration, although they can work together for higher availability of VM. In addition, they can combine with software rejuvenation mechanisms for even higher availability; (4) and time interval setting is critical to a time-based rejuvenation mechanism. These analytic results provide guidelines for deploying and parameter setting of HA techniques in a virtualized system.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1145/1899928.1899949
发表时间:
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期刊:
ACM SIGOPS Oper. Syst. Rev.
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2006-12
期刊:
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影响因子:
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DOI:
--
发表时间:
2007
期刊:
Economics and Applied Informatics
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