difference between cloud and traditional data centre


What is the difference between cloud and traditional data center..

Other than cost what are the advantages in cloud

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Scott Fell, EE MVEConnect With a Mentor Developer & EE ModeratorCommented:
What is referred to as "the cloud" is not all black and white as  JEaston eludes.

Sometimes people refer to "hosting in the cloud" meaning the internet.  When you ask, "What is the difference between cloud and traditional data center".  I take that to mean what is the difference between cloud hosting and traditional hosting as both are in a data center and sometimes both configurations in the same data center.

What the actual difference is will depend on the ISP you are researching.  In general, a cloud configuration can mean your "slice" is spread out over multiple servers but act as if it was a traditional server.   The main advantage is the potential to easily scale from small to large with little effort.  You typically can configure more memory, cpu, and disk space on the fly.

 If you have a dedicated server, you have to plan your scale up or down and it could take a day or 3.

I see a lot of shared hosting configurations are going to "cloud" and this helps keep their costs down. To you, viewing an admin panel, there is probably no difference and scaling just means going from plan A to Plan B.

If you need to have your data private or you know you will not need to scale up or down on the fly, I still think "traditional" hosting is the way to go.  I have read though where even data in "the cloud" can be compliant for HIPAA.
strivoliConnect With a Mentor Commented:
Data on Cloud is stored on a remote Data Center. Otherwise it is stored in your local Data Center.

Many advantages... reliability and availability from anywhere (you should have Internet available).
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John EastonConnect With a Mentor DirectorCommented:
As strivoli said cloud servers are hosted by a service provider in their data center(s) and you access it through the internet.  As such they will (or at least should) take care of all the server maintenance - although exactly what this covers depends on your agreement with them.

A local data center would be hosted in your offices.  You look after all your servers etc yourselves.

Also, if by Traditional Data Center you are thinking of current ISP Data centers where you can rent dedicated servers etc then there is little difference between this and 'the cloud'.  Essentially the cloud is a marketing buzzword for off-site hosted services.

Advantages to moving servers to the cloud will depend on your organisation and what you do.  Some company’s would find a benefit others would find disadvantages.  But in principle you will free up office space, reduce the need for IT experts to manage your servers etc.

However, all data goes through your internet connection so if your internet goes down your office grinds to a halt.  Having said that because your servers are offsite you could go home and work if you had a laptop etc.

Hope this helps answer your questions.
Gerald ConnollyConnect With a Mentor Commented:
Another way of looking at it is with a traditional data-centre model wether local or remotely hosted you can point at a particular set of hardware and say xyz application runs there.
It's not usual to be able to do this with the cloud as your app might run on a different set of hardware every time it is invoked
RAMU CHAuthor Commented:
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