QoS-Driven Server Migration for Internet Data Centers

Many organizations have chosen to host Internet applications at Internet Data Centers (IDCs) located near network access points of the Internet to take advantage of their high availability, large network bandwidths and low network latencies. Current IDCs provide for a dedicated and static allocation of resources to each hosted application. Unfortunately, workloads for these sites are highly variable, leading to poor resource utilization, poor application performance, or both. In this paper, authors develop a framework for QoS-driven dynamic resource allocation in IDCs. Termed QuID (Quality of Service Infrastructure on Demand), the framework's contributions are threefold.