Adaptive management of grid resources

This paper presents a novel resource management system based on active monitoring of grid resources, able to adapt to the changing conditions in large distributed systems. We start by presenting a formal model of the resource management system proposed with high emphasis on monitoring techniques devised to gather real-time feedback about the critical parameters of resources with respect to their manageability. One such parameter is the resource availability, critical in higher-level decision systems such as resource allocators and execution schedulers. The system design and internal techniques devised to gear the management layer are presented in the second part of the paper.