ESXi 5 is the only to go as VMware remove ESX Console in vSphere 5

Posted on July 19th, 2011 in Announcement | No Comments »

VMware had tried hard to push their existing customer to switch over to ESXi version since vsphere 4. With the up coming vSphere 5, there will no longer provide esx service console as it does in the previous version. vSphere 5 will only come with ESXi edition with leave the users no choice by adopting to it.

For users who plan for an upgrade in the near future or any new deployment, I will suggest you to deploy all your ESX host with ESXi for the ease of upgrade or migration. The upgrade process is pretty straight forward from version 4 to version 5 without any big hassle.

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Site Recovery Manager are not supported with vCloud Director

Posted on November 10th, 2010 in Announcement, Server, vCloud, Virtualization, vSphere | No Comments »

While vCloud director is the hot topic now for private cloud computing solution from VMware, some of us may overlook into certain requirements that may require Site Recovery Manager for DR solution. If you run in to this situation, the current version of vCloud director may not be the option for you. SRM are officially not supported with vCloud director, which been informed during the official training class and the official reference document you can read from here. You may want to wait for the update release in the future if you plan to have SRM in your private Cloud environment with vCloud director.

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Maximize CPU utilization on ESX host with Cisco UCS B250M2

Posted on October 16th, 2010 in Server, Tips, vCenter, Virtualization, vSphere | 4 Comments »

We were doing some stress test with more than 15 VMs on a single B250M2 Cisco UCS blade machine with 2 x Intel 6 Cores 2.93Ghz, and 192GB memory. While are stress test are pretty simple, each VM been provisioned with 2 vCpu and 4GB of physical memory. We maximize the CPU load of all the virtual machine and end up I was able to capture the print screen as attach here.

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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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How to make APC PCNS 2.2.4 work with ESXi 4.1

Posted on October 7th, 2010 in ESXi, Tips | 2 Comments »

For the past 1 week, I have been busy with the APC PCNS and ESXi 4.1 and I would like to share my experience “How to make APC PCNS 2.2.4 work with ESXi 4.1″ here.

Basically I will not discuss How To Install PowerChute Network Shutdown on VMware ESX /ESXi again and you may refer to APC official link here.

If you’re try to install APC PCNS 2.2.4 on vSphere Management Assistant (vMA) 4.1 and I’m sure you will get the similar error like “This version of PowerChute Network Shutdown only support VMware ESXi” which I think APC teams should it much more clear. The error message caused by APC PCNS (ver 2.2.4) setup file – “” which check on “/etc/vima-release” file. In the vMA 4.1 released, you’re can only found “/etc/vma-release” file which changed recently. Create a symbolic link or edit the installation script can temporary ignore these error message. See this link.
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