Storage tanks like these can hold up to 240,000 gallons (900,000 liters) of water at any given time. This insulated tank holds water that we’ll send to the heart of the data center for cooling.
We keep pipes like these ready with highly-pressurized water in case of a fire. This water, in particular, is cleaned and filtered so if we use it, we don’t contaminate the facility.
These colorful pipes carry water. Three of our data centers, like this one in Finland, run on 100% unprocessed or grey water. The idea behind this is simple: instead of depending on clean, potable water, we use alternative sources of water and clean it just enough so it can be used for cooling. This water still needs to be processed, but treatment for data center use is much easier than cleaning it for drinking.
Each of our server racks has four switches, connected by a different colored cable. We keep these colors the same throughout our data center so we know which one to replace in case of failure.
In case anything should happen to our data, we have it all backed up. One of the places we back up information is here in our tape library. Robotic arms (visible at the end of the aisle) assist us in loading and unloading tapes when we need to access them.
Visit http://www.google.com/about/datacenters/gallery/#/tech/17 for data centers images.