Guidelines and Best Practices for HA

There are many ways to provide high availability with any particular solution.  At Paraklesys, we work with many different types of solutions that provide reliability and high availability.  This article written by Elias Khnaser at SearchDisasterRecovery, is a very well written informational on this subject.  It has some very interesting information on VMware vSphere that is still very pertinent.  

High-availability guidelines and VMware HA best practices.