Completed a VMware vCenter 5.1 U1a upgrade

This weekend I performed a vCenter 5.1 U1a upgrade (from vCenter 4.1 U1). While the upgrade went well and had only a few issues, I could not have done it as well without these two resources.

This was certainly the most complex vCenter upgrade I’ve had to perform, so I hope VMware finds a way to make this process easier.