I have a 6 host ESX 3.5 datacenter Virtual center 2.5, with 42 virtual machines. The back end storage is both fiber and iscsi connection to SAN. There are licenses for vmotion, DTS, and HA but no clusters are configured..
I want to take advantage of clustering and have everything setup before I start to prep for migration to 4.0. I have been looking at the resource management guide and feel I have a pretty good handle on the concepts but I was looking for some steps and best practices in configuring clustering. When I add hosts to clusters does it affect the VMs on that host? What can go wrong when I do this? Can I undo it?
Any help and guidance is greatly appreciated as always.