Journal of Xidian University ›› 2016, Vol. 43 ›› Issue (3): 190-196.doi: 10.3969/j.issn.1001-2400.2016.03.033

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Availability evaluation model for the heterogeneous system based on RBD

SUN Jian;ZHANG Xingjun;DONG Xiaoshe   

  1. (School of Electronic and Information Engineering, Xi'an Jiaotong Univ., Xi'an  710049, China)
  • Received:2015-06-15 Online:2016-06-20 Published:2016-07-16
  • Contact: SUN Jian E-mail:sunjian83@sina.com

Abstract:

In order to cope with difficulty of heterogeneous system availability evaluation caused by autonomous node performance and characteristic differences, the paper proposes an availability evaluation model based on the reliability block diagram (RBD). First, we analyze and catalog system heterogeneity from the angle of nodes and tasks, and quantify resource heterogeneity. Then by heterogeneity classification, we build a serial and parallel mixed RBD availability evaluation model, and discuss the availability measurement method of nodes and the whole heterogeneous system. Availability evaluation takes the dual-computer and multi node heterogeneous system for example, and compares evaluation results with the Markov process availability model. Results show that the model we propose can evaluate the heterogeneous system with accuracy, and hence, provide references for research on availability improving and high-availability design of the heterogeneous system.

Key words: heterogeneous system, reliability block diagram, availability, heterogeneity, high-availability

CLC Number: 

  • TP302.7