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At least it wasn't a "totally transparent" UPS test scheduled for the Thursday of Thanksgiving weekend. My personal philosophy is that every rack should have its own UPS separate from the data center one, with enough capacity to keep going through blips,and handle a clean shutdown if necessary. That way, when the ops team messes up, far fewer sysadmins get their weekend ruined. Of course, the real problem is that too many people are writing unoptimized code in energy-inefficient languages like ruby and PHP, which require far more servers, and far more cooling, to do the same work as properly written code. If carbon emissions should turn out to be a strong forcer of global warming, then we can clearly say that every time you write PHP, Phil Jones kills a polar bear. Please, think of the polar bears. Simon