Here’s a thought experiment. Suppose each server uses X watts idle and X+Y watts busy. If you have N programs that currently run on N servers that are Z% idle then in the best case you really only need D=
Power savings via software
This press release is particularly fluffy, but whatever the reality of this very vaguely defined algorithmic development the basic message is correct to validate nine terabytes of data (nine million million or a number with 12 zeros) in less than
The Amory Lovins bottleneck
Lovins observes that power inputs in many industrial processes go into a bottleneck that makes power conservation hard if you start at the wrong end. The power goes into a long pipeline of process that emerges on the other end
Instructions per joule – a good start
… multi-GHz superscalar quad-core processors can execute approximately 100 million instructions per Joule, assuming all cores are active and avoid stalls or mispredictions. Lower-frequency in-order CPUs, in contrast, can provide over 1 billion instructions per Joule—an order of magnitude more
Amory Lovins on smart engineering
Data centers show up around minute 24. [youtube=http://www.youtube.com/watch?v=28RmpedUYLk&w=425&h=344]
Security for dummies – a lesson for smart grid
WASHINGTON — Militants in Iraq have used $26 off-the-shelf software to intercept live video feeds from U.S. Predator drones, potentially providing them with information they need to evade or monitor U.S. military operations. Senior defense and intelligence officials said Iranian-backed
Green energy and smart devices
We’re starting to see a confluence between IT and energy that will change both industries. A windmill power data center is an interesting data point. At some time, we’re going to want to control the energy generation from the data
Cleantech and history of software
I’m on my way to Linz, Austria to participate in a panel at an event called Cleantech Venture Forum. We’ve spent a lot of the last two years looking at ways to save power in data centers and mini-data centers