Back in the day (2002) we had an IT tent, complete with a pair of DL380's and associated kit. ambient was 38 Celsius at it's peak and the wind direction determined the server maintenance schedule (daily or weekly). Still, could've been worse... and lo, two years later, it was. 55 Celsius, no time for acclimatisation and queues for the portaloos (emptied at 1500 daily). - but at least they were civilised enough to have British mains sockets!