VMware has this SDK which lets you programmatically control your virtual machines, clusters, etc. But, it is pretty awful. It all centers around the Great Managed Object Reference. There any many ways to great your grubby developer hands a Great Managed Object Reference, but most of them involve sacrificing a chicken over your TraversalSpecs and SelectionSpecs. But let's not get into that now.

One thing I love though is way VMware were not satisfied with the usual ternary logic for the system status.

StatusDescription
green The entity is OK.
red The entity definitely has a problem.
yellow The entity might have a problem.
gray The status is unknown.

Status good, bad and unknown I can just about live with, but system might have a problem? Maybe, I will just execute some code to deal with it.