G-QoSM: A Framework for Quality of Service Management

Some applications utilizing Grid computing infrastructure require the simultaneous allocation of resources, such as compute servers, networks, memory, disk storage and other specialized resources. Collaborative working and visualization are examples of such applications. In these applications, Quality of Service (QoS) is related to Grid services, and not just to the network connecting these services. With the emerging interest in “Service-Oriented Grids”, resources may be advertised and traded as services based on a Service Level Agreement (SLA). Such a SLA must include both general and technical specifications, including pricing policy and properties of the resources required to execute the service – to ensure QoS requirements are satisfied. A framework for QoS management is presented to enable Service-Oriented Grid users to specify, locate and execute Grid services with QoS constraints. The framework provides three particular features: 1) support for resource and service discovery based on QoS properties, 2) support for providing QoS guarantees at middleware and network level, and establishing SLAs to enforce these, and 3) providing QoS management on allocated resources based on a