On Fault Tolerance of Resources in Computational Grids

Grid computing or computational grid is always a vast research field in academic, as well as in industryalso. Computational grid provides resource sharing through multi-institutional virtual organizations fordynamic problem solving. Various heterogeneous resources of different administrative domain are virtuallydistributed through different network in computational grids. Thus any type of failure can occur at anypoint of time and job running in grid environment might fail. Hence fault tolerance is an important andchallenging issue in grid computing as the dependability of individual grid resources may not beguaranteed. In order to make computational grids more effective and reliable fault tolerant system isnecessary. The objective of this paper is to review different existing fault tolerance techniques applicable ingrid computing. This paper presents state of the art of various fault tolerance technique and comparativestudy of the existing algorithms.