The past couple of years the IT industry has been getting excited and energised about Cloud. Huge IT companies and consultancies have spent, and are spending, billions of us dollars, pounds and yen buying Cloud technologies. So, precisely uh, the deal? Private Cloud
Whilst Cloud is creating great deal more heat than light it is, nonetheless, supplying us all something to think about and something to sell our customers. In some respects Cloud isn’t new, in other respects it’s ground-breaking and will call and make an undeniable change in the way that business provides users with applications and services.
Beyond that, and it is already happening, users will at last have the ability to provide their own Processing, Memory, Storage space and Network (PMSN) resources at one level, and at other levels acquire applications and services everywhere, anytime, using (almost) any mobile technology. To put it briefly, Cloud can liberate users, make remote working more possible, ease IT management and move a business from CapEx to more of an OpEx situation. In the event that a business is obtaining applications and services from Cloud, with regards to the type of Cloud, it might not exactly desire a data centre or server-room any more. All it will need is to cover the costs of the applications and services that it uses. Some in IT may perceive this as a threat, others as a liberation.
So, precisely what is Cloud?
To understand Cloud you must understand the bottom technologies, principles and individuals that support it and have provided a great deal of the impetus to develop it.
The past decade the industry has been super-busy joining together data centres and server-rooms from racks of jar boxes to less holders of fewer tin packing containers. As well the number of applications able to can be found in this new and smaller footprint has recently been increasing.
Virtualisation; why do it?
Servers hosting a single application have utilization levels of around 15%. That means that the server is ticking over and highly under-utilised. The cost of data companies packed with servers running at 15% is a financial nightmare. Server utilisation of 15% can’t return anything at all on the initial investment for many years, if. Servers have a lifecycle of about 3 years and a depreciation of about 50% from the package. After three years, the servers are worth nearly anything in corporate terms.
Today we have refined tool-sets that permit us to virtualise pretty much any server and doing that we can create groupings of virtualised servers that are able to web host multiple applications and services. This has brought many benefits. Higher densities of Application servers hosted on fewer Resource servers permits the data centre to deliver more applications and services.