[QUOTE=Caribbean Boy;9785587]Isn't BA's main data centre in Boudicea House near Hatton Cross, with an unmanned data centre in nearby Cranebank? If there was a failure of hardware or software in Boudicea House, I would have expected the operation to run from Cranebank. There is UPS in both buildings, so how could a power supply issue cause such massive failure.[/QUOTEnk.
The high-level network diagram used to be stuck to the wall over my desk back in the day. RTZ ended up being hosted by Amadeus, with resilient links to both Amadeus data centres from both BOHO and Cranebank. I don't know the power supply side of it, but I'd imagine from its location that BOHO has grid supplies from LHR's Iver and Staines feeders as well as local emergency generation.