• AAKANKSHA
• SANDEEP SHARMA

Cloud computing has initiated a revolution in the commercial world by providing computing service to its clients via the internet in a pay-as-you-go manner. Quality of service (QoS) is quite needful to be achieved in cloud computing for customer contentment. Quality of service includes reliability, performance and handiness that can be offered in an application by utilizing the fault tolerance mechanism. Fault tolerance is the ability of an application to go on responding even if there are faults and errors occurring in the application. Since breakdown and errors that usually occurs in the cloud are quite hard to discover and evade then fault tolerance mechanism is must requisite to be implied in the cloud. Fault tolerance improves the performance by rendering the service to guests on demand. This paper address various types of faults, failure and fault tolerance techniques. Fault tolerance assorted methods are given and compared. In this paper, several architectures given by research expertise are discussed with various factors achieved.

virtualization, Hypervisor , fault tolerance , Vms

"FAULT TOLEANCE IN CLOUD COMPUTING - A SURVEY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.272-285, May-2019, Available :http://www.jetir.org/papers/JETIR1905444.pdf

"FAULT TOLEANCE IN CLOUD COMPUTING - A SURVEY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp272-285, May-2019, Available at : http://www.jetir.org/papers/JETIR1905444.pdf