Allocated memory and memory resource limit

Hello

I'm trying to get a better understanding of the memory allocated for a virtual computer when memory limit is set.

For example:

I created VM1 with 1 GB of RAM. Subject, I left 0 by default. But under the limit, the default value is unlimited. I would indicate that Unlimited VM1 can use as much memory as it needs and that the ESX host can provide.

If I set the limit to 2 GB, it does mean that VM1 can use more than 1 GB of RAM configured on built but can use up to 2 GB of RAM? From the file pdf resouce management, it appears that once you set the limit, the amount of memory configured on built is ignored, is that correct?

CPU and memory limits default to unlimited. When the limit of memory is unlimited, the amount of memory configured for the virtual machine when you create becomes its implicit limit in most cases.

chukarma wrote:

I created VM1 with 1 GB of RAM.

Think of this parameter as being equivalent to the amount of RAM that you install on a physical machine. The guest operating system can NEVER more than this amount.

Subject, I left 0 by default. But under the limit, the default value is unlimited. I would indicate that Unlimited VM1 can use as much memory as it needs and that the ESX host can provide.

The limit is use to restrict a virtual machine on your part until his assignment. For example, if you - for some reason-wanted to configure your virtual machine with / 3GB, but her access to more than 1 GB, you would set the attribution to 3 GB (it's how the guest operating system might think there), still set the limit to 1 GB - this is the maximum that ESX would allow the virtual machine to use at any time.

If I set the limit to 2 GB, it does mean that VM1 can use more than 1 GB of RAM configured on built but can use up to 2 GB of RAM?

No.... See the previous discussion.

From the file pdf resouce management, it appears that once you set the limit, the amount of memory configured on built is ignored, is that correct?

# If it is what deduced you, while the document needs to be clarified. The virtual machine can NEVER use physical RAM more than its allowance.

CPU and memory limits default to unlimited. When the limit of memory is unlimited, the > amount of memory configured for the virtual machine when you create becomes sound > implicit limit in most cases.

It is said that if the limit is 'Unlimited' (the default), then the 'quantity of memory configured for the virtual machine' (i.e. attribution), becomes the limit. It's just a convoluted way of saying that the virtual machine is unable to use more is attributed to him.

Ken Cline

Technical Director, virtualization

Wells Landers

TVAR Solutions, a company of the Wells Landers group

VMware communities user moderator

Tags: VMware

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