Industrial Networks and Intelligent Systems. 3rd International Conference, INISCOM 2017, Ho Chi Minh City, Vietnam, September 4, 2017, Proceedings

Research Article

Model-Based Sensitivity of a Disaster Tolerant Active-Active GENESIS Cloud System

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  • @INPROCEEDINGS{10.1007/978-3-319-74176-5_20,
        author={Tuan Nguyen and Xuhua Rui and Damsub Lim and Jun Oh and Dugki Min and Eunmi Choi and Tran Thang and Nguyen Son},
        title={Model-Based Sensitivity of a Disaster Tolerant Active-Active GENESIS Cloud System},
        proceedings={Industrial Networks and Intelligent Systems. 3rd International Conference, INISCOM 2017, Ho Chi Minh City, Vietnam, September 4, 2017, Proceedings},
        proceedings_a={INISCOM},
        year={2018},
        month={1},
        keywords={Disaster tolerance High availability GENESIS Reliability graph},
        doi={10.1007/978-3-319-74176-5_20}
    }
    
  • Tuan Nguyen
    Xuhua Rui
    Damsub Lim
    Jun Oh
    Dugki Min
    Eunmi Choi
    Tran Thang
    Nguyen Son
    Year: 2018
    Model-Based Sensitivity of a Disaster Tolerant Active-Active GENESIS Cloud System
    INISCOM
    Springer
    DOI: 10.1007/978-3-319-74176-5_20
Tuan Nguyen1,*, Xuhua Rui1,*, Damsub Lim1,*, Jun Oh1,*, Dugki Min1,*, Eunmi Choi2,*, Tran Thang3,*, Nguyen Son3,*
  • 1: Konkuk University
  • 2: Kookmin University
  • 3: Vietnam Academy of Science and Technology
*Contact email: anhnt2407@konkuk.ac.kr, abealasd@konkuk.ac.kr, miaow89@konkuk.ac.kr, ohkakaru@konkuk.ac.kr, dkmin@konkuk.ac.kr, emchoi@kookmin.ac.kr, thang@ioit.ac.vn, nnson@ioit.ac.vn

Abstract

Modern cloud computing systems are prone to disasters. And the true cost due to service outages is reportedly huge. Some of previous works presented the use of hierarchical models: fault tree (FT), reliability block diagram (RBD) along with state-space models: continuous time Markov chain (CTMC) or stochastic petri nets (SPN) to assess the reliability/availability of cloud systems, but with much simplification. In this paper, we attempt to propose a combinatorial monolithic model using reliability graph (RG) for a real-world cloud system called general purpose integrated cloud system (GENESIS). The system is designed in active-active high availability configuration with two geographically distributed cloud sites for the sake of disaster tolerance (DT). We then present the model-based comprehensive analysis of system reliability/availability and their sensitivity. The results pinpoint different findings in which the architecture of active-active and geographically dispersed sites with appropriate interconnections of the cloud apparently enhance the system reliability/availability and assure disaster tolerance for the cloud.