IBM has launched a "mainframe gas gauge" to widen its environmental push, in addition to promoting its mainframes.
The system demonstrates a mainframe's energy usage versus x86 servers and other distributed computing platforms.
As an extension of the company's ongoing £500m Project Big Green initiative for datacentres, the program allows mainframe customers to monitor their systems' precise energy consumption in real-time.
IBM will also begin publishing typical energy consumption data for the IBM System z9 mainframe. The data is derived from actual field measurements from about 1,000 customer machines, determining average watts per hour consumed, which can be used to calculate watts per unit.
IBM claims the data already collected for August and September shows that typical energy use can be 60% of "what is on the label" or maximum rating for the model of mainframe.
David Anderson, an IBM green consultant, said, "A single mainframe running Linux may be able to perform the same amount of work as approximately 250 x86 processors, while using as little as 2% to 10% of the amount of energy. Customers can now measure the energy advantages of IBM System z."