What is "Infrastructure as a service (IaaS) and what are its advantages?

Cloud computing offers services that your organization can use via the Internet. This means that you do not need to deploy and manage these services in-house.

Infrastructure as a service (IaaS) is exactly the kind of service. This allows you to access the infrastructure server over the Internet.

What you buy when you pay for the infrastructure as a service? Computing power: CPU, storage, RAM. You buy the equivalent of the server, but instead of training in his office computing capacity accessible over an Internet connection. This means you don't need to buy, the Commission, to place and manage servers in-house. You don't need to manage operating systems, or provision of disk space or power. Access to the infrastructure as a service IaaS. You, this virtual server: it looks and behaves like a server, but you can't touch it.

What are the advantages of IaaS?

You pay for what you use is like buying a piece of pizza, not the whole pizza.
More than one organization can use the same server-this means that others buy some of the other pizza slices. That brings economies of scale provider-they provide servers for many clients.
Because your ISP is scaled to meet the needs of many customers, they can react quickly to meet the demands of your business. The traditional model may mean that you need to be careful with the prediction of your server/computing demand. If your business has grown, and your hardware it was not possible, you are faced with a problem. You need to strike a balance between carrying extra cost of unused capacity or risk cannot grow fast enough to meet demand.
With IaaS you pay for what you need and pay more when you need more.
Along with the server you get services like the network that you usually must create or configure if you're hosting your own piece of equipment in-house.

IaaS does not solve all your problems:

IaaS gives you just that, only infrastructure: service ends: you get a virtual server with the operating system, and that's it. You need to manage your software and updates.
The performance of virtual equipment can vary, depending on the value. Cheap options will mean you have a small pizza slices, with the entire pizza, shared by many other organizations-you are not sure how big is your slice. The more expensive options will mean you have some special resources-guaranteed level of CPU, RAM-so you know how great your pizza slices. The more expensive options that give you your own virtual server or your own server, with the level of resources is dedicated to you. You get performance, you pay for.
Storage system not on its own, perhaps not even in your own country, so you need to pay attention to security and privacy rules for your data.

Infrastructure as a service (IaaS) can help you manage some of your questions, but you need to consider if this is the right solution for your particular it needed.

Cloudosity help their clients to use cloud-based services, including infrastructure as a service (IaaS) options.

source