If you need more a lot of computing power on the road — perhaps for fast deployment to crisis areas — the ultimate power/portability combination is Sun's Blackbox data-centre-in-a-shipping container. At €500k (£343k) without the servers, cooling and switches and so on, it is also significantly cheaper than a bricks-and-mortar data centre. Sun is also offering short-term leases of the box.
Sun claims that the facility is 20 percent more energy efficient than a standard data centre and takes a tenth of the time to deploy, but it still requires a decent power source.
A box with 600Amps running through it requires good cooling — that's what the pipes below are for, and they help keep anything up to 500CPUs running in ambient outside temperatures that can range from -22ºC to 55ºC.
The data centre is fitted with standard 19-inch racks, which Sun claims can be more tightly packed than is possible in a traditional data centre. A slider mechanism allows the racks to be pulled into the extremely narrow service aisle.