Software Defined Networks (SDN) in the Wild

Software Defined Network BrainI’ve seen a few articles around the emergence of SDNs in the past couple of weeks and I’ve been hunting around for some references of organisations that have embraced the technology.

There has been a flurry of acquisitions and funding for SDN companies relatively recently:

The market leader is considered to be Nicira so I had a look at their references page to see which companies were investing in SDNs and for what reasons.
From my research it looks like SDNs are being used to increase business agility at this stage. Where it gets very interesting is the potential for SDNs to enable more complex cloud deployments to exist and for customers to be able to provision these more complex cloud environments through self-service portals.

It’s this potential that has me excited. The ability to provision complex cloud implementations quickly means that the enterprise will be moving hard to the cloud as it offers the ability for a more comprehensive “total IT in the cloud” as opposed to one or two applications.

I’d be very interested to see some more details on SDNs that have been deployed and what real world user experiences look like to confirm if these more complex clouds are starting to exist.

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Cloud Architecture (Part 3) – Service Delivery

This post is part two of a five part series of posts on what should be designed into any cloud architecture. In this post, I will be going into some detail on the service delivery layer of a cloud architecture which will include orchestration.

Part 1 can be found here and part 2 here. The entire series will be grouped under the Cloud Architecture category.

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Do I Need a Private Cloud to Get All the Benefits of a Cloud?

In many cases, the benefits of the cloud and the benefits of refreshing the technology in an IT department’s infrastructure are combined. Tech refresh can be implemented without going the full cloud route, and tech refresh benefits can be seen as a relatively quick win. A good example of this is virtualisation – Virtualisation is a key stage to building a private cloud but VMware has been virtualising server workloads long before the cloud became a force in IT and there are very real and measurable benefits to virtualising your infrastructure.

In this post, I’m going to try to split out the tech refresh benefits which you will gain in the early stages of your cloud journey to the cloud benefits which will be achieved further down the line as I think this is critical in understanding your cloud TCO.

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