Kate's Comment

Thoughts on British ICT, energy & environment, cloud computing and security from Memset's MD

Utility Computing

I will be carrying on with the “Greening the data centre” series soon, but in the interim several people have recently been asking me about the concept of utility computing, and it has been a major theme of recent IT conferences. Despite the attention the concept is receiving there is still a lot of misunderstanding, both about what it is…

Greening the data centre: Why

I’ve written before about going green being important for business, but now I’d to focus on one area: the data centre. There has been a lot of interest recently in the topic of “green” data centres. however, many organisations still seem to feel that being more energy efficient in is just pandering to the general worries about global warming and…

Taking the heat

When temperatures rise to record levels, it’s not just trains and water supplies that go wrong; all sorts of infrastructure can be affected including the Internet. Normally our data centres have plenty of over-capacity in their air-conditioning systems. Cooling a data centre is one of their big design challenges – each of our 1 metre square racks uses around 4KWatts,…

Horribly expensive hardware

“So, do you use Cisco firewalls as well as routers?”, asks the client; “No, actually.” is our response. Why, you might ask? Surely if you are running over a thousand servers and managing hundreds of individual firewalls you must be using Cisco or some other branded “firewall appliance”? But why must we? What is so great about a horribly expensive…

Getting value for Wattage

Power is becoming ever more of an issue for data centres, and the prices keep on going up – doubling in the last two years! Not only that, but the energy ends up as heat, which then has to be air-conditioned (add another 30% to the electricity bill), and then it all just wafts into the environment. All that is…