A Survey on Optimizing the QoS during Service Level Agreement in Cloud

Resource Reservation is one of the major aspect in parallel and distributed environment like cloud. While reserving the services in cloud we need to establish Service Level Agreements through negotiation. The negotiation between consumers and cloud Service providers will basically include parameters like price, time and Quality of Service(QoS). There are many existing approaches which solve the problem of price and time slot negotiation mechanism without taking into account the important aspect QoS. In our proposed work this can be solved by the Cloud Monitoring System(CMS) which enhances the QoS. Monitoring can be performed by a global predicate is defined as a conjunction of the local properties of different network elements. In the system if it contains N distributed network elements coordinated by a central monitoring station. Each network element monitors a set of local properties and the central station is responsible for identifying the status of global parameters registered in the system . After detecting the local changes, each network element has to emit alarms in order to ensure that global parameters are not violated. With monitoring, the failed nodes can be noticed and it gradually increases the efficiency of the cloud environment and attract the consumers to consumer the services.