Cloud Computing: It's Not Just About Access From Anywhere - Page 2
Resource Pooling (Think “Black Box”). Somewhere far away IT people are managing shared, redundant infrastructure across many data centers. They manage maintenance, business continuity, elimination of failures and bottlenecks, etc. You gain all of the benefit of these large-scale investments in time and resources – but without the need to do any work.
Rapid Elasticity (Think “No Limits”). You no longer have to worry about capacity planning. If you suddenly get a surge in traffic (due to an emergency or unexpected popularity) the computing resources you need are automatically – and immediately – available. You avoid slow-downs, timeouts and outages that waste time, cause frustration and turn away customers.
Measured Service (Think “Value”). Pay only for what you use, and no more. Rather than paying 100% for servers that you only use at 20% utilization, you pay for the exact number of resources you use, when you use them. The ideal cloud providers charge usage in terms that everyday people – not just IT systems administrators – understand and value.
When explaining these cloud computing characteristics to those whose “day jobs” are not in tech, I like to use the electricity analogy. When you buy a new television, you do not call the power company and ask them to initiate a project to set up your television. You simply plug it in and begin using it. If you don’t like where it is in your house, you unplug it, move it to a different room, and plug it in again. At the end of the month, you don’t pay for the power company’s generator and labor investments; you pay for the extra kilowatt-hours your television used.
Services that meet all five of these characteristics are much more valuable than those that simply provide access from anywhere. That’s why cloud computing has so much potential to transform the software and IT markets.