Understanding the Concepts of Cloud and Clustering
It is easier to understand the concept of a cloud if you imagine a huge building with several rooms for lent. You pay for one of the apartments and rent it for as many days, months or years, you wish to. The vacant rooms are supposed to be marketed by the owner of the building for other tenants who can come by and rent them. More tenants equal to more ROI.
For your own safety, as well as a responsible space owner, you would want to secure your parameters by putting extra locks on the doors, automate burglar and fire alarms, place surveillance cameras, and so on. Cloud helps you to set-up these systems only in your own space while you have to trust your building owner completely for the hallways, elevators, stairs, lounges, fire exits, and the reception. This is known as cloud. Most providers follow this principle. Vacancies go for sale, while you rent a place in the building of virtual servers.
Server clusters, on the other hand, is like your home. You are free to shut down the gates and give intruders warning signs to stay away from your property. In case someone tries to break into your house, the suspicious footprints can give you the necessary hints. Then all you have to do is beef up the security measure a notch higher from your master bedroom till the garage and the gate.
The server stores every data like payrolls, client records, presentations, thousands of email conversations which contain proprietary information and even general updating information of your Facebook account.
The cloud acts as a “black box” like those in cockpits of aircraft's which contain all information of your organization stored in those virtual services. You appreciate the metal clusters that can be easily scrutinized by you for any threats at any given point of time. To add to it, you share it with no one, so it is exclusively your own information.
Cluster over Cloud
Ever experienced hassled because your joint account partner is unavailable? This can be classified as cloud. In case of an error, the whole system crashes, stalling all your business operations.
Cluster in server comes to rescue here. In case of a server failure, you can easily swap and replace such that the system restores power. For example, there are several ATMs in case the one you use is out of order.
Cloud Over Cluster
The one problem that people have faced with customised clustering solutions is their demand of similar versions of the operating systems and the hardware for every physical machine involved. Also, it becomes a necessity for clusters to access high speed for tying everything together unlike the cloud which can sustain on long latency connections.
There are obvious reasons why computer science considers cloud computing to be a breakthrough. But there are reasons why people prefer a certain genre of music over other, simply because that is what they need at that point of time. Cloud is more promising, though it might not be the ultimate package, while server clustering is not perfect for all.
Author Bio: Sheila Kurdinger reviews companies that offer Chatroulette her love for data visualization and infographics. Professionally, she works as a product designer and has been researching on compact storage.