I am not sure this is the right forum for my question...
I am conducting performance tests on an ESXi 3.5 server to identify the right number and the right size of the hosted clients.
I created some Windows based guest VM (Windows Server 2003 and Windows Server 2008), I start them concurrently and I try to evaluate the performance of each VM and of the whole host.
What is it supposed to happen if I change the settings of a Windows server guest? Can I change the number of (virtual) processors without reinstalling the guest OS? Can I change the memory size without reinstalling the guest VM?
Given I want to see what happens with 6 concurrent guests with 2 processors and 4 GB RAM each one and what happens with 6 similar servers with 1 processor and 1 GB RAM each one, can I just reduce the number of processors or should I reinstall the client VMs from scratch?
Same question: if I want to compare a guest VM with 1 processor and 1 GB RAM with a VM with 4 processors and 4 GB RAM, can I just change the settings of my VM or should I reinstall it from scratch?
Last question: is there any documentation to help me conducting the tests I need to perform?
Regards
Marius
