Environment Quality of Service in Cloud

Performance Monitoring is an integral part of maintenance. Requirements for a monitoring solution for Cloud are totally different from a legacy and virtualized environment monitoring solution. There are many third party tools/solutions available for monitoring a cloud. But there are no standard models exist for such a solution as what all parameters needs to be covered in the solution so that an exhaustive performance report can be produced for the service provider. In the context of Cloud Computing becoming the most sought after technology, there is a need for such a standard model. This paper is intended to provide a very brief introduction about Cloud computing and its architecture, illustrates how Cloud Performance monitoring differs from traditional monitoring, the different types of monitoring in cloud and metrics of interest to various users. The paper also proposes a high level view of a model which can be used as a guideline while coming up with performance monitoring solutions for cloud.