ESX and ESXi: What Google Says About Them?

Yesterday the VMware community noticed that the direct ESX download links were removed from vSphere download page. When I checked the download page, the ESX link is not with the bundles but at the end of the page in its own section.

To my own curiosity, I wonder what the adoption ratio of these two hypervisors is today. As an engineer, I don’t have sales data in front of me. Even I have, I am sure if I can share it here.

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Instead, I tried Google Trends which can probably answer the question indirectly. The rationale behind this is that the more something is used the more it’s searched as a keyword at Google. The keyword trends should reflect the usage.

Here is the diagram I captured. From the chart, we can see clearly the histories of both hypervisors: ESX started in 2003/4, and ESXi in 2008. During latest three years of overlapping, the ESX keyword declined while ESXi climbing. As of today, these two are pretty close. Given the trend and phasing out of ESX, we can expect the ESXi will continue to go up and pass ESX, which will continue to go down till EOL.

Note that this is an at most an indirect answer to my question.  If it’s consistent with what you see, that is good. If not, that is OK too. I share this here, just for fun.

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