Rackspace Cloud Servers vs VPS Platforms

Lately I’ve found myself in the middle of several discussions about how Rackspace Cloud Servers and other platforms like it (Amazon EC2, Linode, GoGrid, etc) differ from traditional VPS environments. While there are similarities, they are by no means the same thing. Let’s take a quick look at some of the key differentiators and advantages.

A Cloud Server is a virtual dedicated server instance based on our custom implementation the Xen Hypervisor that run on very robust hardware. These server instances offer truly dedicated and protected resources which isn’t the case with a VPS (virtual private server). While you may get a small portion of dedicated memory, there is generally no dedicated CPU allocation, disk i/o, network i/o, etc. In addition, most VPS providers only offer smaller amounts of resources, 256MB-1GB of memory and no options above this. And the largest problem by far is VPS platforms are typically oversold, so one physical host machine is running far too many customers and this turns into a resource allocation nightmare causing server crashes or poor performance (or both). There is no isolation from other customers.

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Rackspace / Mosso Cloud Servers Demo

A few days ago I posted a video demo/tutorial showing how to get started with Rackspace Cloud Files & the Limelight CDN component to that platform. I have another tutorial complete showing off the new Cloud Servers platform and how easy and quick you can deploy new virtual dedicated server instances and manage those servers. This is an amazing platform with significant advantages to running in a traditional dedicated environment and it also has many benefits in comparison to other clouds in terms of usability, reliability and cost. More information here: www.rackspacecloud.com

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