Performance Troubleshooting for VMware vSphere 4
Performance problems can arise in any computing environment. Complex application behaviors, changing demands, and shared infrastructure can lead to problems arising in previously stable environments. Troubleshooting performance problems requires an understanding of the interactions between the software and hardware components of a computing environment. Moving to a virtualized computing environment adds new software layers and new types of interactions that must be considered when troubleshooting performance problems. Proper performance troubleshooting requires starting with a broad view of the computing environment and systematically narrowing the scope of the investigation as possible sources of problems are eliminated.