Platforms & Technology
These technologies power our cloud based services.
VMware is one of the oldest proponents of virtualisation, and one of the technologies we use for our cloud servers. We normally recommend VMware for small to medium private clouds. VMware is one of the best known cloud technologies because of their successful IPO in 2007, which was one of the most hyped IPOs in recent history.
In our experience, VMware is good where you have a combination of Linux and Windows servers. It offers good failover functionality and the live migration is stable. The disadvantage here is that some of the more advanced features incur significant licensing costs. However, for most clouds the overheads are relatively comfortable.
Microsoft Hyper-V is a new entrant to the cloud technology marketplace. Microsoft initially had a relatively weak virtualisation technology in Virtual Server 2005. This didn’t use virtualisation extensions in modern CPUs, and so was slow, and had no useful management capabilities.
Hyper-V came at the same time as Windows Server 2008, and in the R2 (Second release) version of the product Microsoft delivered a strong technology. We recommend Hyper-V for private clouds where the majority of the servers are running Windows Server 2003/2008 operating systems, and Hyper-V includes live migration and failover technologies.
Citrix XenServer is a commerical off-shoot of the open source Xen product. We are fully experienced in the technology and utilise it in relevant scenarios.
Citrix Xen is respected for its security and speed. It is a lightweight hypervisor that packs a heavyweight punch and is relied upon by many corporate enterprises as a reliable virtualisation platform. Citrix Xen is so efficiently designed that the guest machines running on it enjoy near-native performance from the underlying hardware.
Linux KVM has quickly established itself as an alternative to Xen, by relying on mainline Linux drivers which have more development effort put into them.
It contains live migration functionality, and in combination with DRDB disk mirroring via network, allows cloud functionality with a small pool of hardware.
One of the other features that you can make use of is the functionality to mirror memory, that is where you have two cloud servers as guests on one physical machine, the physical machine uses only one set of physical RAM for memory pages that are identical on the two guest machines. This allows greater densities on private clouds, providing greater value without sacrificing performance or functionality.
We host clients around the world, including in our own 60,000 square foot Data Centre in Reading, UK. Location matters depending on what you want to achieve and we can help get to the bottom of that.
Where do I start?
Please give us a call on 01582 227927. We want to hear from you and this is the best way to start out. We can ask you a few quick questions on the way to understanding what makes your business tick, and what it really needs. We want to save you money and make your business even more successful through the appropriate use of Cloud technologies.