The dream ticket: security and scalability

At the end of last year, IT industry analyst house Gartner claimed that half of large enterprises will be using hybrid cloud computing – a combination of external cloud computing and in-house management – by 2017.



Enterprises are looking for the combination of public cloud scalability allied to the security conferred by running a private data centre.

Customers want the benefits of externally-provided cloud computing, such as increased scalability and reduced costs, without compromising on security. The fear of handing over mission-critical data and applications to a third party is still present, and is also totally understandable.

What is important is that the public part of your cloud – whoever it is provided by – is fully integrated with your private cloud.

Integration means traffic can be dynamically routed to a public cloud if demand on a private cloud is too high. It should be seamless to users. It is also vital to ensure that management of both your clouds is consistent.

With data and applications moving from device to device and from a private cloud to a public one, it is vital that policies, particularly security policies, are enforced across the entire business.

Access control can and should be consolidated at the application delivery tier. This means policies covering the location of the user, what device they’re using and what data they’re accessing are uniform across the business and in both private and public cloud environments.

Ultimately, hybrid cloud computing presents the best of both worlds: the scalability and cost-effectiveness of a public cloud coupled with the security of a private cloud deployment.

To get the best out of a hybrid environment it is vital to ensure that your public cloud is managed in just the same way as your private cloud.

Gary Newe is technical director at F5
+44 1932 582 000