VMware Infrastructure Resource Settings Sagas – by Erik Zandboer



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3 Responses to “VMware Infrastructure Resource Settings Sagas – by Erik Zandboer”

  1. Webs Says:

    So if I read this right, your recommendation is if a server needs 4gb of memory to just give it 4gb and go into the resource settings and check the “Unlimited” box so it actually gets all 4gb?

    • erikzandboer Says:

      It is not about getting the full 4GB. It goeds like this: Let’s say a server might require 4GB, but you start out with 2GB. In some editions of ESX, you end up with a resource setting not at unlimited, but at 2GB.

      When you then decide to do the upgrade to 4GB, you will not run into problems when the resource was set at “unlimited”. But if the resource was set previously to 2GB, you end up with a VM that sees 4GB, but only gets 2GB! So you might (and propably will) see ballooning and a bad performance on that VM…

  2. Webs Says:

    So then you are suggesting to keep the memory set to unlimited and give the Guest server the appropriate amount of memory it needs. So if I have a server that needs 4gb I should set it to unlimited and give the guest server 4gb. That way if it needs more or less down the road, I can adjust it and not have to worry about what it “actually” sees?

    I think I got it. Thanks!

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