%0 Journal Article
	%A Rahma Souli-Jbali and  Minyar Sassi Hidri and  Rahma Ben Ayed
	%D 2017
	%J International Journal of Computer and Information Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 123, 2017
	%T Hierarchical Checkpoint Protocol in Data Grids
	%U https://publications.waset.org/pdf/10006700
	%V 123
	%X Grid of computing nodes has emerged as a
representative means of connecting distributed computers or
resources scattered all over the world for the purpose of computing
and distributed storage. Since fault tolerance becomes complex due
to the availability of resources in decentralized grid environment,
it can be used in connection with replication in data grids. The
objective of our work is to present fault tolerance in data grids
with data replication-driven model based on clustering. The
performance of the protocol is evaluated with Omnet++ simulator.
The computational results show the efficiency of our protocol in
terms of recovery time and the number of process in rollbacks.
	%P 379 - 384