Articles Tagged with Amazon

CloudComputing

Who Runs What Hypervisor?

CloudComputing

Have you taken any time answering this question? Who runs what hypervisor? Is it just me, or do there seem to be a lot of articles and posts about OpenStack recently, so many that one almost gets the feeling that everything is running on OpenStack? It looks like there’s a push to help keep OpenStack on the path to becoming more mainstream, and the new partnership with Red Hat might just be the ticket. For now, OpenStack is still going through its adolescence, but it has great potential to go out and really make a difference in this world. Until then, have you ever stopped to consider which underlying hypervisors are supporting the clouds we all know and love?

Read More

DesktopVirtualization

How Good an Idea to Virtualize XenApp?

DesktopVirtualization

How good an idea is it to virtualize XenApp? Way back in 2010, when more of the poles were ice, we asked is virtualizing Citrix XenApp a waste of time and effort? There were a number of benefits identified: hardware abstraction allowing easier image management and OS upgrades; options for higher availability and faster recovery, even failover; virtualization-enabled silo consolidation; and importantly, better management of user capacity on servers.

Yet, with XenApp running on Windows 2008 R2  memory limitations are of far less issue. Introducing a hypervisor has an overhead which can impact user density and can change Microsoft server license costs per physical server. Do these considerations outweigh other benefits? Hypervisor technology and performance has moved on considerably – what is the impact of that? What other services can virtualized XenApp drive?

Read More

CloudComputing

Public Cloud Computing – Economics and Throats to Choke

CloudComputing

When enterprises consider putting business-critical workloads in public clouds, many of them overlook, at least in part, critical issues of economics and over what portion of their cloud software stack the cloud vendor has full control. This leads to a situation where sometimes relatively inexpensive offerings where the vendor has full control of their software stack (like Amazon EC2) are improperly compared to an offering from a vendor like Savvis or Terramark who is building a cloud out of either VMware-provided components or OpenStack components. This gives rise to important issues that drive both the cost of the respective offerings and the degree to which the cloud vendor can both enhance the offerings with rapid agility and quickly address service level issues.

Read More

Stopwatch Image of Agility

Return on Agility and the Cloud

Stopwatch Image of Agility

Amazon’s CTO Werner Vogel recently posted about the challenge of choosing the right metrics for cloud computing. He begins with the following observation where he introduces the idea of Return on Agility:Stopwatch Image

“In the many meetings with customers in which I have done a deep dive on their architecture and applications to help them create an accurate cost picture, I have observed two common patterns: 1) It is hard for customers to come to an accurate Total Cost of Ownership (TCO) calculation of an on-premise installation and 2) they struggle with how to account for the “Return on Agility”; the fact that they are now able to pursue business opportunities much faster at much lower costs points than before.”

Read More

CloudComputing

OpenShift — Pricing and Comparison to AWS

CloudComputing

On June 26, Red Hat announced a new version of OpenShift, and pricing for a future production offering (some time this year). You still can’t buy it but if you were able to buy it you’d know exactly how much it could cost – at least if you could work out what a “gear” is. Pricing allows us to start to compare it more meaningfully with other offerings. However rather than comparing with another PaaS offering, we think most people will be actually considering IaaS as an alternative, so we are going to do that comparison instead.

Read More