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Vmware Workstation detected your processor speed is 2527 MHz but your Windows reported as 2535 MHz. This may cause your time clock not to be synchronized properly. This problem on some host computers with Intel SpeedStep, AMD Cool ‘n’ Quiet, or other similar power-saving technologies.

Please go to Vmware Knowledge Base for solution

Workaroud:

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From VMware documentation, the limits are

• ESX/ESXi 4.0 can support up to 1TB of RAM
• ESX/ESXi 4.0 can support up to 64 logical CPUs
• ESX/ESXi 4.0 can support up to 512 Virtual CPUs per host
• ESX/ESXi 4.0 can support up to 320 virtual machines per host

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I believe many people have the same questions. Which one is the best free virtualization out there?

I did not include the Vmware Workstation because it is not free. Based on my experience working with all the virtualization software, my personal opinion would be the Sun VirtualBox. I got hooked up with it when I was trying to virtualize Solaris 10.

At that time, I was undecided to go to which direction for my career path. There was a vacancy as Unix expert in Sun platform which means that I have to work with Sun Solaris and its Sun Storage too.

I have installed Vmware server 2.0 but it always made my computer slow. The response was not so fast.

Then, I tried virtualbox, the installation steps were about the same as vmware server. After setting up all the guest OS, it was getting very smooth and fast response.

Virtual PC 2009 is good for Windows systems. Other than  that, it is not supported well.

Nowadays, everything in computer world is going into virtualization and cloud computing environment. I think this skill set is in high demand right now. I wanted to get myself certified in this course too but the course fee is still too expensive for me.

For those who are interested in getting the VCP4, the paths are shown below.
Unlike other certifications track, vmware always requires the all the candidates to attend the training course as pre-requisite before taking the test.

# VMware Certified Professional on vSphere™ 4
With the launch of vSphere™ 4, a new certification is available.

There are four possible paths to achieve VCP4

1. If you are NEW to VMware
* Attend the VMware vSphere: Install, Configure, Manage course OR attend the VMware vSphere 4: Fast Track (available in Q4)
* Take and pass the VCP4 exam

2. If you are currently a VCP3
* Take and pass the VCP4 exam. This option will only be available until December 31, 2009. The What’s New class is strongly recommended. Beginning in 2010, VCP3s must attend the VMware vSphere 4: What’s New class in order to upgrade.

3. If you are currently a VCP2
* Take and pass the VCP on VMware Infrastructure 3 exam
* Take and pass the VCP4 Exam. This option will only be available until December 31, 2009. Beginning in 2010, VCP3s must attend the VMware vSphere: What’s New class in order to upgrade.
* Beginning in 2010, VCP2s who have not upgraded will be required to attend the VMware vSphere: Install, Configure, Manage or VMware vSphere: Fast Track course

4. If you are not a VCP3, but have attended one of the prerequisite classes (VI3: Install & Configure; VI3: Deploy Secure & Analyze; or VI3: Fast Track).
* Take and pass the VCP3 exam OR attend the VMware vSphere4: What’s New course.
* Take and pass the VCP4 Exam.

Source: vmware learning