Speaking as the operator of at least one datacenter that was originally built to water cool mainframes... Water is not hard to deal with, but it has its own discipline, especially when you are dealing with lots of it (flow rates, algicide, etc). And there aren't lots of great manifolds to allow customer (joe-end user) service-able connections (like how many folks do you want screwing with DC power supplies/feeds without some serious insurance).. Once some standardization comes to this, and valves are built to detect leaks, etc... things will be good. DJ Mike Lyon wrote:
Paul brings up a good point. How long before we call a colo provider to provision a rack, power, bandwidth and a to/from connection in each rack to their water cooler on the roof?
-Mike