Definitive answer on max resources (CPU, RAM, etc.) for 4 EXSi

Hello

Our Organization is planning a new generation of an environment based on ESXi 4. This will serve to do tests of reference and serve as a proof of concept. If all goes well, the results will be used to justify a full license of ESX. Believe me when I say that this is our only option (especially for political reasons)... and get the demo for ESX license is not viable, due to the length of our assessment.

Thus, our initial goal was to buy new hardware to server for the eval. We are looking at using servers with 4 physical CPU, with 2 to 4 cores each, for a total of 8 to 16 cores. We would like to that the 32 GB of RAM if not more. We will use SAN based storage.

During the technical process, we realized that ESXi may have some limitations on resources. I've searched and searched and we found as many different answers and opinions... Some say there is a physical processor 1 limit for ESXi, others say 2, 4,... and even unlimited.

Is there a clear, definitive and official VMware on that response? Can someone provide a link or a doc with the clear answer to this question? It would be a very bad day for us if we bought these servers, only to find that ESXi is unusable, but 1 CPU, or run into some other limitation that will skew our results and possibly to condemn our assessment.

Thank you!

ESX can support 256 GB of RAM, 32 cores (maybe even 64 hearts now).

The problem is your confusion on the support for virtual computers / operating system not the host.  The host has way more that you have now, you must have a license that supports SMP for the computers in your guests.

Also if you use the version of ESXi FREE which is limited you must download a COMPLETE product (unlimited for 60 days) you can use to test / justify a purchase.

Tags: VMware

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