VMWare recently put out an excellent guide on High Availability considerations in a VMWare environment. HA has always been one of those subjects where its super easy to make a mistake. Administrators often can’t see the whole network holistically, so they leave single points of failure. For instance, maybe they use NIC teaming, but all the NICs are a part of the same card. For true high availability, you must have complete redundancy across the board, everything from your SAN, to your switching infrastructure, to your servers. VMWare’s guide is a good way to make sure you are considering all the angles when you consider HA in a virtual world.
VMWare High Availability
