An Availability Model for Active / Active Cluster Systems 


Vol. 8,  No. 2, pp. 173-181, Apr.  2001
10.3745/KIPSTC.2001.8.2.173


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  Abstract

For the fast increase of a hardware reliability and the size or complexity of application softwares, the ratio of hardware-origin system failures becomes much smaller than that of software-origin system failures. To improve the availability of an Active/Active cluster systems, we study software rejuvenation method that is a proactive fault-tolerant approach to handle software-origin system failures. In this paper, we model software rejuvenation and switchover processes as the problem of a semi-Markov chain and get mathematical steady-state solution of the process. We calculate the availability and the downtime of an Active/Active cluster systems using software rejuvenation method and find that the method can be improve the availability of the systems.

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[IEEE Style]

K. J. Park and S. S. Kim, "An Availability Model for Active / Active Cluster Systems," The KIPS Transactions:PartC, vol. 8, no. 2, pp. 173-181, 2001. DOI: 10.3745/KIPSTC.2001.8.2.173.

[ACM Style]

Kie Jin Park and Sung Soo Kim. 2001. An Availability Model for Active / Active Cluster Systems. The KIPS Transactions:PartC, 8, 2, (2001), 173-181. DOI: 10.3745/KIPSTC.2001.8.2.173.

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