Great Post about NUMA Hyperthreading in ESX 4.1

Posted on October 8th, 2010 in Tips, Virtualization, vSphere | No Comments »

As you may aware, significant improvement had been done on the latest hypervisor from VMware vSphere 4.1.
1 of the key changes are the vCPU for each virtual machine with latest NUMA hyperthreading architecture.

I found a very details and great post talk about this topic, please read the full post from here.

This will significant improve the Consolidation ratio and performance over the virtual machine VS the previous version ESX 4.0.

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VMware vSphere 4 update 1

Posted on November 21st, 2009 in Announcement, Virtualization | No Comments »

VMware had officially released the vSphere 4 update 1 yesterday. There are many new support features and also bug fixes. Is time to take a look for a major upgrade this month to overcome some challenges we faced with the previous version.

Please view more information from the release note.

Beside the bug fixes, there are some new key highlight here too.

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Virtual CPU Increase on Demand in vSphere

Posted on March 20th, 2009 in Virtualization | 1 Comment »

vSphere will match with the competitor hypervisor to deliver up to 8 vCpu per VM. This will increase the CPU resources to VM guest which may require more than 4 vcpu previously. At the same time, it also provide the flexibility to support multiple vcpu from 1 to 8.

Configure 5 Vcpu for the VM

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Maximum numbers of Vcpu in single ESX Host

Posted on February 28th, 2009 in Server, Virtualization | 6 Comments »

If we refer to the current version which is ESX 3.5 u3, the maximum number of Vcpu per ESX server is 192 per ESX Servers. Personally, I think the number of Vcpu per ESX servers is too minimal. Imagine if we do run a servers with 4 or 8 physical CPU sockets and we consolidate 40 : 1 Physical server in our virtualization environment, we will hit to the bottleneck on maximum numbers of Vcpu per ESX servers but not due to the CPU consumption.I hope VMWare should revise the configuration to greater number or 256 Vcpu per ESX servers.

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8 Vcpu per VM – VMware is behind the competitor

Posted on October 7th, 2008 in Hardware, Industry News, Virtualization, Xen | 5 Comments »

I had just setup a brand new Citrix Xensource hypervisor server today for evaluation purpose. The really impress thing that attracted myself is the 8Vcpu per VM be able to configure which over take ESX servers 3.5 update 2 today. I know that VMware has their roadmap in the future to release the 8vcpu to support processing power hungry application to be virtualized in the future.

But if we compare the technology today, I believe most of us will see that from virtual cpu perspective, VMware had been quite slow respond on that. If you do spoke to most of the VMware representative or consultant, they always told you not to allocate more than 1 Vcpu if not required.

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