Rescheduling policy for fault-tolerant optical grid

Optical grid is expected to be an efficient infrastructure to support advanced data-intensive grid applications. In optical grid, the faults of both computational and network resources are inevitable due to the large scale and high complexity of the system. Even though many researches have been published on fault-tolerance policy for either grid system or optical network, but few works have been done to consider fault-tolerance when faults may happen in grid system and optical networks. In this paper, we address to the fault-tolerance problem in optical grid system and propose a rescheduling policy to handle both computational resources and network resources faults. Simulation results prove that our policy achieves better performance.