Cloud Monitor provides comprehensive monitoring service towards customer applications and resources of computing, storage, network in globally distributed cloud resource pools. To achieve the best system security and the most efficient resource utilization, cloud monitor offers a centralized, stereoscopic and muliti-dimensional moitoring management capability as well as a variety of early warning and alarm way. It supports customized monitoring metrics, customized SLA monitoring, and customized reporting and remote monitoring, to provide convenient and controllable cloud computing service to the customers.