On the partition side of things... not really. Usually you end up with coordinated failures of various types.
For example, lets say you run redundant networks. Are the physical paths diverse? What happens if someone trips on BOTH network cables? What happens if the redundant network is on the SAME switch hardware? What happens if yes you use two network switches, but they are hooked up to the same UPS? Or both UPSs are on the same circuit breaker?
Ok let's say mostly diverse physical paths, both tied up nicely into bundles, different switch hardware, different UPS, different power grids (some nice data centers will even have that!).
At this point other kinds of odd failures are more likely, than failure of both networks paths at the same time, let's say meteor strikes, disgruntled employee wiping out backups and data.... Can one even begin then to consider an AC system? And if so what would it look like?
For example, lets say you run redundant networks. Are the physical paths diverse? What happens if someone trips on BOTH network cables? What happens if the redundant network is on the SAME switch hardware? What happens if yes you use two network switches, but they are hooked up to the same UPS? Or both UPSs are on the same circuit breaker?
The classic reference on this is from google: http://www.catonmat.net/blog/wp-content/uploads/2008/11/that...
There are a number of theoretical issues with these approaches, starting with the FLP result.
Also realistically, eventually all practical solutions fail, often due to user error.