A Dynamic Provisioning Framework for Multi-tier Internet Applications in Virtualized Data Center

With the resurgence of virtualization technology, todaypsilas Internet data centers are shifting towards virtualized data centers. Internet applications tend to see dynamically varying workloads. To address the problem of performance management for multi-tier applications hosted in virtualized Internet data center, we propose a three-level automatic provisioning framework based on feedback control for multi-tier applications. Experiments demonstrate the effectiveness of our technique in SLA guarantees while obtaining improved resource utilization.