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Time to go deep underground for this next datacenter, into the caverns of a unused mine. The datacenter is situated 100 meters underground in a coal mine in the Chubu region of Honshu, Japan's main island.
When complete, the facility will total 30 shipping containers, each holding about 250 servers and with about 10,000 processor cores available, although that number could be expanded to 30,000.
Cooling is provided by groundwater and the 15C temperature underground dispenses with the need for air conditioning outside the containers.
The datacenter was set up in 2007 by a joint venture made up of Sun, now owned by Oracle, and 11 other companies.
The group estimates that it could save $9m a year on electricity costs by removing the need for water coolers.
The containers are strong enough to withstand earthquakes of 6.7 on the Richter scale. The picture above is not of the mine used for the Sun datacentre, but a coal mine tunnel in Pennsylvania.
If you are looking for a secure place to store information, then inside a mountain seems a safe bet.
The Mountain Complex and Data Center offers three million square feet of space inside a mountain situated more than 100 feet above the top of the Table Rock Dam in the Ozark mountains of central US.
Inside the mountain there is a further 75 acres of undeveloped space, as seen here.
The facility's owners say the site is "nearly impervious" to catastrophes. Tornadoes blow over the site, floodwaters can't reach it and a "direct attack could not substantially harm The Mountain".
Photo: The Mountain Complex and Data Center
Beneath this Orthodox Christian cathedral in Helsinki is a datacenter designed to pipe heat to nearby homes. The datacenter is located in a former WWII bunker carved into the rock below Uspenski Cathedral.
Heat from the hundreds of computer servers in the datacenter is captured and transferred to water-filled pipes and then used to heat homes in the Finnish capital.
The amount of heat transferred should be enough to heat about 500 homes.
The energy usage of the datacenter, used by IT services firm Academica, is designed to be half that of a typical datacenter.