Entries by Giles


The importance of hypervisor independence

One of the key features of CloudStack over many of it’s competitors is that it is hypervisor agnostic. I love this feature and am excited about what it offers service providers in particular. However, I recently read a post which asked the question: “you can use multiple hypervisors, so what ? what is the likely […]


Citrix Cloudstack 3.0 – a first review

Cloudstack version 3.0 is the first version of the established cloud orchestration technology to be built by Citrix themselves after their acquisition of Cloud.com last year. Giles Sirett, Managing Consultant of ShapeBlue the strategic CloudStack consultancy gives his first impressions of the new version. We’ve had the final beta of CloudStack 3.0 on the bench […]

Umbee, UK Managed Hosting Company chooses cloud consultancy to form it’s public cloud offering

Managed Hosting Company Umbee Limited today announced that it has chosen strategic cloud consultancy, Shapeblue, to help it deliver it’s pioneering  infrastructure-as-a-service (IaaS) to the UK market. ShapeBlue will work closely to help Umbee to strategize, commercialise, build and integrate  it’s IaaS cloud offering, built around Citrix CloudStack technology. ShapeBlue provide strategic cloud consulting the […]

ShapeBlue chosen as Citrix’s first European Cloud Advisor

ShapeBlue, the UK based strategic cloud consultancy, has announced that it has been chosen by Citrix Systems to be the first European company to become a member of it’s Cloud Advisor Program. The program is designed to recognise organisations with deep expertise in private and public cloud strategy & design. Giles Sirett, ShapeBlue’s Managing Consultant […]

What exactly is Cloudstack

The CloudStack™ platform is a complete software suite used to create Infrastructure as a Service (IaaS) clouds. Target customers include service providers and enterprises. The CloudStack platform enables service providers to set up an on-demand, elastic cloud computing service that is similar to the Amazon EC2™ service. It enables a utility computing service by allowing […]

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How to beat the VMWare Vtax.

Citrix CloudStack eases the financial impact associated with the “vTax,” the term used by many in the cloud and virtualization communities to refer to the latest update to the VMware vSphere 5 licensing model that added costs to customers’ existing cloud and virtualization implementations.  Since CloudStack can support multiple hypervisors in the same cloud, VMware […]


Cloudstack, Cloud.Com and Citrix. Who’s who?

Many people ask me what is the realtionship between cloudstack, Citrix and Cloud.com. This is how Citrix explain it themselves:   Citrix Systems today announced a new edition of CloudStack™, which will feature enhanced support for both the VMware vSphere and Oracle VM hypervisors, enabling VMware and Oracle customers to manage their virtualized servers as […]