International Journal of Advanced Research in Computer Engineering & Technology
Cloud computing is a comprehensive solution delivers IT as a service. It is an internet based computing solution where shared resources are provided like electricity. The flexibility of cloud computing is a function of allocating resource on demand. Cloud computing is the combination of grid computing and utility computing. Fault Tolerance is a configuration that prevents a computer or network device from failing in the event of unexpected problem or error such as hardware failure, link failure, unauthorized access, variations in the configuration of different systems and system running out of memory or disk space. The integration of fault tolerance measures with scheduling gains much importance. Workflow management systems support fault tolerance and efficient data handling mechanisms.