Migration from VMware Infrastructure 3 to VMware vSphere 4

Now that vSphere 4 is out there for a long time and VMware has released vSphere 4.1 you may be confident to migrate your environment.
I’m pretty sure that with the new features you can convince your boss to afford new hardware’s and licensing to use all the capacity of vSphere ; )

Well, let’s focus on the technical piece, which is the easier one.

VMware has a great Upgrade Center page where you can learn a lot of things like, new licensing program, documentation, communities, etc..

But if you want something more practical take a look at the prerequisite checklist, it will covers everything you need to know to start upgrading it.

Good luck..