What killed me: Ms11-100 security patch. Utter disaster that broke our entire cache and UI layer. Literally our kit jumped from 10% utilisation to 90% overnigh

What killed me: Ms11-100 security patch. Utter disaster that broke our entire cache and UI layer. Literally our kit jumped from 10% utilisation to 90% overnight resulting in a last minute rollback. Didn't show up in load testing. business analysts lack of grasp on reality "its only a few billion rows" (to download our audit data via HTTP in CSV format - not going to happen). SQL Server 2012 pricing. Mark shuttleworth being an ass over a amazon integration causing us to move all our Linux stuff to debian. VMware 2tb lun limit on iscsi. This sucks badly. Compilation speed of c# - this is knackering us. Java is much better as it doesn't have to create monolithic dependency units (assemblies). Exploding kit.