VMware has released an updated Performance Best Practices for VMware vSphere document for 4.1.

The document provides tips that help administrators maximize the performance of VMware vSphere 4.1.

Chapter 1 - “Hardware for Use with VMware vSphere,” provides guidance on selecting hardware for use with vSphere.

Chapter 2 - “ESX and Virtual Machines,” provides guidance regarding VMware ESX™ software and the virtual machines that run in it.

Chapter 3 - “Guest Operating Systems,” provides guidance regarding the guest operating systems running in vSphere virtual machines.

Chapter 4 - “Virtual Infrastructure Management,” provides guidance regarding resource management best practices.

Links: Technical Resource Center (direct link to the Document).

Earlier versions:

Performance Best Practices for VMWare vSphere 4.0

Performance Tuning Best Practices for ESX Server 3