UPS War Story
Dunno if it's true but should be...
In a Data Centre far far away in space and time (Watford many years ago). The data centre was having some work done in the car park. A JCB driver was digging a trench and hooked up the mains incoming supply. The Data Centre seamlessly switched to the UPS batteries and the techies sighed a huge sigh of relief as the well tested Diesel Gennies would soon kick in. Silence; No clouds of black smoke from the block house, and the batteries getting flatter by the minute.
The reason for the silence??
The trigger circuit for the generators and their supply to the building were in the same trench\duct as the mains power feed...
There but for the grace go we all..
Biting the hand that feeds IT
