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virtualized hardware resources

We are in the middle of planning to virtualize all our physical servers and also we'll be upgrading to windows server 2012. Each of our hosts has 2 quad core chips.
What's the best way to determine how many sockets and how many cores per socket I want for each server? Does it even matter? Once the server is installed and configured and we find we need more processing power do we have the option of simply editing hardware settings and adding more sockets/cores?

thanks

Amit

Use this
http://servervirtualization.cloudapp.net/

Also you can add or remove hardware specification anytime.

Haresh Nikumbh

quad-core processor contains four cores

check below link to understand vcpu and physical cores

http://social.technet.microsoft.com/wiki/contents/articles/1234.hyper-v-concepts-vcpu-virtual-processor.aspx

you can start with single vcpu per VM .. if you feel that is sufficient then you can easily add additional vcpu for the VM

aackar

ASKER

sorry, just to clarify, we are upgrading to server 2012 but we are not using hyper-v, we are using VMware vSphere 5 for virtualization.

Amit

This is what you need minimum
http://technet.microsoft.com/en-us/library/jj134246.aspx

However it changes according to application installed on Windows 2012. So, you need to check application system requirement and size it accordingly.

Haresh Nikumbh

vcpu and physical cpu example is same for vmware..

as i mention earlier you can start with 1 vcpu later on depend on application requirement you can increase vcpu just editing Vm

aackar

ASKER

how about logical cores? If one host has 16 logical cores (with hyper-threading) should I start off with 1 core as well and then add more if needed? Do I also need to pay attention to that all the logical cores on all the VMs add to no more than 16?

ASKER CERTIFIED SOLUTION

Eddie-Lopez

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Amit

Eddie,
Good Explanation.