This has been floating around for while, people are marketing clouds as both Public and Private.
What is the difference between the both?

Also, sites such as VPS.net market there clouds as VPS but on a cloud [Which they basically are] but is there any problem with selling VPS if they are on a cloud network [Without telling people that it is on a cloud network] because really what is the main differences apart from the setup, they are all virtualized servers in the end?

If you're on a cloud such as VPS.net's system, if your node fails, your VPS is migrated live to another node, should that fail too (perhaps if their UK datacenter went boom), they can be moved over to another geographic location with no downtime. It's a BIG bonus for people that need high uptime and reliability, coupled with massive scalability :)

This has been floating around for while, people are marketing clouds as both Public and Private.
What is the difference between the both?

Also, sites such as VPS.net market there clouds as VPS but on a cloud [Which they basically are] but is there any problem with selling VPS if they are on a cloud network [Without telling people that it is on a cloud network] because really what is the main differences apart from the setup, they are all virtualized servers in the end?

Cloud and VPS are two different things. Yes they are both virtualized but in the background the hardware is different. A VPS typically can be on one hardware/server. A cloud runs on numerous servers and even numerous data centers and if one server or one data center goes down the VPS doesn't go down because it is on a cloud infrastructure. On the other hand, a VPS hosting account usually will reside on one server, and if the server goes down or data center then there is no redundancy.

So basically, a VPS account on a cloud infrastructure, in theory, is better and should be more expensive.

Hope this helps.

one other thing i forgot to mention is you can only scale your VPS accounts resources as much RAM, hard drive space, etc.. the server has. In a cloud infrastructure it's practically limitless because you can just keep adding new nodes/servers.

This has been floating around for while, people are marketing clouds as both Public and Private.
What is the difference between the both?

Also, sites such as VPS.net market there clouds as VPS but on a cloud [Which they basically are] but is there any problem with selling VPS if they are on a cloud network [Without telling people that it is on a cloud network] because really what is the main differences apart from the setup, they are all virtualized servers in the end?

Public and Private clouds are in fact different. As far as a provider goes, public cloud's are built as a multipurpose shared cloud that divide resources into many small pieces to provide resources for each individual client. It's more common that public cloud's are billed on the utility method (pay per use). Public cloud's are best used for quick expansion, development, and lower level production environments. Cloud storage such as Amazon S3, and Amazon's EC2 are good examples of a public Cloud. This is also the cheapest entry to Cloud as it can be done for pennies.

Private cloud's are also commonly referred to as VPDC, or Virtual Private Data Center. This is a purpose built cloud that is built to spec for the customer's needs. It's dedicated hardware, networking, storage, and all other components that are typical in a cluster but built on a Cloud platform to provide redundancy, high availability, and scalability. Because it's dedicated and built to spec, performance will be more consistent and this is much more suited for more mission critical and other production environments that demand such features. The entry level to this service is usually in the thousands.

A VPS is an encapsulated, single operating environment. No matter the back-end technology it is just one OS so it's limited to one physical server as far as vertical scalability goes. A VPS can be on a cloud, and it can not be on a cloud. In either case, this is an inherent limitation to today's technology. A provider may choose to market it on a cloud or not, but there would be a difference as far as redundancy goes. A VPS however will NOT be high available as it's again, just one encapsulated single OS. If it's running on a server that goes down, it will go down momentarily as well until it is restarted on another node.

Something that is more commonly built on a Cloud is a Cloud Application. For private cloud customers we build these as each application (let's say, a LAMP stack) is split into a whole lot more "mini" purpose built, self managed, self healing, operating environments. Because of this, it's beyond redundant and is now fully high available as well as vertically scalable to much greater degrees. This imho is the true essence of Cloud, and where the biggest benefits are realized.

A private cloud traditionally refers to an internal infrastructure that a company sets up for their own use. Public cloud is a service delivered to the public over the internet.

However, many service providers are now offering private cloud as a service. This can be in the form of your own dedicated host through which you can deploy a private cloud (VM instances).

It's a BIG bonus for people that need high uptime and reliability

Here's a graphic (http://www.webhostingtalk.com/attachment.php?attachmentid=17849&thumb=1&d=1288988459) from Microsoft on Private vs Public Cloud.

This has been floating around for while, people are marketing clouds as both Public and Private.
What is the difference between the both?

Also, sites such as VPS.net market there clouds as VPS but on a cloud [Which they basically are] but is there any problem with selling VPS if they are on a cloud network [Without telling people that it is on a cloud network] because really what is the main differences apart from the setup, they are all virtualized servers in the end?

Hi,


First Part:
Public Clouds are Clouds in your Companie Datacenter and belong to your Company and only YOU can use it. This is not really a Cloud because you can't scale like on Amazon to 100000+

A Public Cloud is like Amazon EC2. Everybody can use it.

A Hybrid Cloud is a part of bouth. You have your Private Cloud for Business information and secret things and a Public Cloud for scaling.

Second Part:
You can see it when you buy a VPS Cloud Server. It has a NAS or SAN Storage and you can scale it.
Yes there is a big difference between the setup of Cloud and "normal" VPS server. But in the end they are all virtualized server.