I had a fun day resolving a licensing issue for a client. This one was a little different than I had seen in the past. The cluster in question is an eight node cluster running ESX 3.5. The error message that I received when trying to perform a vMotion was “Unable to migrate from HostA to HostB: Virtual machine has 2 virtual CPUs, but the host only supports 1. The number of virtual CPU’s may be limited by the guest OS selected for the virtual machine or by the licensing for the host.”
At first, I thought this might be an issue with the virtual machine being a 64bit Windows 2008 virtual machine with multiple virtual CPU’s. After further review of the environment I discovered this issue was happening with all multi-processor virtual machines. I also discovered that this issue was happening on six of the eight hosts in the cluster. Continue reading Host Only Supports 1 vCPU: Licensing?
If you are a hyperscale (Cloud) data center manager, one of your top concerns is how to get the maximum amount of computing work done per Watt of power consumed. With that in concern at the forefront Cloud Providers like Google, Microsoft, and Facebook have strong incentives to explore new solutions for delivering compute cycles. Rumors coming out of Facebook suggest that it is looking to move away from its current X86 architecture platform in favor of servers based on ARM Holdings Cortex processor range. Porting an entire service to a new processor platform may not appear to be a sensible direction to take but porting to a new architecture is more a financial consideration than a technical one. If the cost per unit of performance justifies it , it is cheaper to pay a few programmers to rework the apps for a new architecture than it is to buy more servers. Continue reading ZT Systems launch commercial ARM-based cloud server
Many times we virtualization experts push for backups without the agents as these backups tend to be in our opinion, cleaner and faster. But what if you could get the benefits of your existing backup tools (such as Tivoli) but gain the power and advantages of using all the possibilities within the virtual environment. For VMware vSphere this is possible using the Pancetera backup tools. Continue reading Virtualization Backup: Agent or Agent-less?
It is now very clear the VMware vSphere 4.0 and 4.1 have demonstrated the robustness and performance necessary in order for them to be trusted virtualization platforms for many business critical applications. It is also very clear that many organizations are well down the road toward putting business critical applications on vSphere. We may not yet be at the point where the most response time critical applications (like online trading) are on vSphere, but we are certainly at the point where line of business applications like SAP and enterprise resident CRM applications are being virtualized. Continue reading Applications Performance Management on VMware vSphere
For all the benefits of improved security and reliability in Internet Explorer (IE) 8, many business still have a critical need to support IE6. IE6 may well be over 10 years old, it may well be two versions behind the most current release; the fact remains many businesses still have critical applications that rely on IE6’s cumbersome standards implementation and more relaxed security requirements.
In a previous article, Running Internet Explorer Beyond Windows XP I suggested that Microsoft reconsider its policy on supporting IE as a virtualized application. And Microsoft did reconsider. Go me. But, rather than allow it, Microsoft have actively sought to prevent IE virtualization: stopping one application virtualization company from promoting their offer of delivering virtualised versions of IE from their website and restating their support options for virtualised IE.
What will the impact be to your business you if you need to continue to support IE6 on Windows Vista or Windows 7. Are Microsoft’s recommended solutions the only option now? Is it possible to have a seamless, simple, fast and importantly low cost solution to allow users gain the benefits of the latest IE release while maintaining access to legacy web applications?
Continue reading Virtualizing Internet Explorer: Microsoft Takes The Ball and Goes Home
One of the key themes of VMworld 2010 was “IT as a Service”. IT as a Service is simply the next logical step beyond virtualization. The key parts of the evolution from virtualization to IT as a Service is that IT as a Service involves a self-service aspect where business constituents can select “services” that are then automatically provisioned and delivered to them, and the notion of secure multi-tenancy within an enterprise’s data center for the purpose of separating the environments of multiple business units, departments or divisions much in the same way that a public cloud vendor must separate the environments of Coke and Pepsi. Continue reading Is VMware vCloud Director an effective Enterprise IT as a Service Platform?